# Algebra I STAAR Practice Test B

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1 Algebra I STAAR Practice Test B 1 At a video store, used videos cost \$5.00 and new videos cost \$1.00. Which equation best describes the number of used, u, and new, n, videos that can be purchased for \$58.00? A 5u 1 1n 5 58 B 1u 1 5n 5 58 C 17(u 1 n) 5 58 D 1(u 1 n) 5 0 Sand bought x notebooks and pencils for \$9.77. Each notebook cost \$1.95 and each pencil cost \$0.9. Which equation represents this situation? F x 0.9 G x H x J x What is the -value of the solution to the sstem of equations shown below? 5x 5 10 x Record our answer and fill in the bubbles on our answer document. 3 Sean does pet-sitting in the summer. His net profit, p, is represented b the equation p 5 1a 130, where a is the number of pets he watches. Which is the best interpretation of this information? 5 Which function best describes the data in the table below? A 5 x B 5 x 1 1 C 5 x D 5 x 1 x Copright Pearson Education, Inc., or its affiliates. All rights reserved. A Sean made a profit of \$130. B Sean earns \$1 dollars for each pet he watches and initiall invested \$130. C Sean earns \$130 for each pet he watches. D Sean paid \$1 to get his pet-sitting business started and has 130 clients. STAAR Algebra I EOC Assessment Practice Algebra I STAAR Practice Test B 89

2 6 Garrett purchased x pounds of beef at \$ each and bags of chips at \$3 each. He spent less than \$30, not including tax. Use the grid below to graph the inequalit x 1 3, O 8 x 9 How does the graph of 5 x differ from the graph of 5 x 3? A The graph of = x 3 is wider than the graph of 5 x. B The graph of 5 x 3 is narrower than the graph of 5 x. C The graph of 5 x 3 is shifted down 3 units from the graph of 5 x. D The graph of 5 x 3 is shifted up 3 units from the graph of 5 x. 8 Which point represents a reasonable number of pounds of beef and bags of chips that Garrett ma have purchased? F (, 8) H (5, 3) G (7, 1) J (6, ) 7 What is the equation of the line that passes through the points (, 3) and (5, 6)? A 5 x 1 3 C 5 x 1 3 B 5 x 1 1 D 5 x The owner of a landscaping compan uses the function x to determine the charge for service, where is the charge and x is the number of hours of service. What does it mean if the compan changes the function to x? F The initial cost for the landscaping service increased to \$5. G The total cost for landscaping service increased to \$5. H The cost per hour of landscaping service increased to \$5. J The number of emploees at the landscaping compan increased to Which situation cannot be represented a linear function? F the number of wheels on n biccles G the total cost of tickets at \$10 per ticket H the number of right angles in n rectangles J the population of bacteria that doubles each da 11 The expression s 8 represents the volume of a large cube. The expression s 3 represents the volume of a small cube. What is the ratio of the volume of the large cube to the volume of the small cube? A s 5 B s 11 C s D s 3 Copright Pearson Education, Inc., or its affiliates. All rights reserved. 90 Algebra I STAAR Practice Test B STAAR Algebra I EOC Assessment Practice

3 1 The following graph shows the relationship between the forearm length and shoe size of a group of mathematics students. 1 Which best describes the effect of shifting the -intercept of this graph down 3 units, but keeping the x-intercept the same? Forearm Length vs. Shoe Size Shoe Size (Women's US) Forearm Length (inches) Based on these results, if Bethan has a forearm length of 8 inches, which is the best estimate of her shoe size? O x F The slope increases. G The slope decreases. H The slope does not change. J The slope changes sign. F 11 H 7 Copright Pearson Education, Inc., or its affiliates. All rights reserved. G 9 J 5 13 Which statement is true of the graph? O x A The x-intercepts are 0 and 3. B The -intercept is 1. C The minimum is at x 5. D The minimum value is. 15 What are the roots of the quadratic equation x 1 x 8 5 0? A and 1 B and 1 C and 1 D and 1 16 If the domain of the function 5 x is 0, x, 5, what is the corresponding range? F 0,, 5 G,, 3 H 5,, 0 J,, 3 STAAR Algebra I EOC Assessment Practice Algebra I STAAR Practice Test B 91

4 17 The graph below best represents which of the following situations? 19 Which equation best represents the area, A, of the parallelogram below? Height (feet) x 3x + A A 5 3x 1 x C A 5 3x 1 B A 5 x 1 D A 5 7x Time (min.) A An ant crawls into an anthill. B A person rides a roller coaster. C A famil drives through a mountainous area. D A racer runs a one-mile race around a track. 0 The function f(x) x 1 00 represents the population of a cit where x is the number of ears since 000. If this trend continues, what will be the population in 015? Round to the nearest whole number. F 8 G 65 H 816 J The quadratic expression x x 8 is modeled below using algebra tiles. What is the greater of the two solutions to the equation x x 8 5 0? Record our answer and fill in the bubbles on our answer document. 1 The function 5 60x represents the cost of a gm membership where x is the number of months. What is the range of the function? A all real numbers B all real numbers greater than or equal to 60 C all real numbers less than or equal to 60 D nonnegative multiples of 60 What is the value of x if (x, 1) is a solution to the equation x 5 1? Record our answer and fill in the bubbles on our answer document. Copright Pearson Education, Inc., or its affiliates. All rights reserved. 9 Algebra I STAAR Practice Test B STAAR Algebra I EOC Assessment Practice

5 3 Which equation best describes the relationship between hours of homework (h) and the grade level (g) in this table? A g 5 h 1 1 B h 5 g 1 1 C g 5 h 1 D h 5 g 1 Hours of Grade Homework Level Which tpe of function is graphed below? O x A quadratic B exponential C linear D logarithmic Copright Pearson Education, Inc., or its affiliates. All rights reserved. The function f(x) x models the weight in pounds, f(x), of x calculators. What is the range of the function? F all real numbers G all whole numbers H all real numbers greater than 0 and less than 0.75 J all nonnegative multiples of Which equation best represents the relationship shown in the table below? x F 5 x 1 9 G 5 x 1 8 H 5 x 1 9 J 5 11x STAAR Algebra I EOC Assessment Practice Algebra I STAAR Practice Test B 93

6 7 In the equation 5 x 1 5x 1 6, what is the value for when x equals 3? Record our answer and fill in the bubbles on our answer document. 30 Which graph shows the solution to the sstem of equations below? x x Which expression is equivalent to (3 1 c)c 1 (c)(c 1 3)? F 6c + 6c + 1 G 1c 3 + 1c + 6c F O x H 1c 3 + 6c + 1c J 1c + 8c What is the solution set for the equation 5(x 3) 5 0? G O x A { 5, 1 } B { 5, 1 } C { 5, 1 } D { 5, 1 } H J O x O x Copright Pearson Education, Inc., or its affiliates. All rights reserved. 9 Algebra I STAAR Practice Test B STAAR Algebra I EOC Assessment Practice

7 31 Which equation best represents the line on the graph? O x 33 The function 5 5x 300 represents the depth of a submarine after x minutes. What does the -intercept represent? A the initial depth of the submarine B the rate at which the submarine submerges C the rate at which the submarine travels D the final depth of the submarine A 1 5x 5 B 5x 5 1 C 10x 5 D 1 5x 5 3 The number of fish in a lake was 50 in 001. In 003, there were 310 fish. If the number of fish continues to increase at this rate, what is a reasonable estimate for the number of fish in the lake in 009? 3 Which equation represents the pattern shown in the table below? x F 5 x 1 G 5 x H 5 5x 1 8 J 5 3x 1 6 Copright Pearson Education, Inc., or its affiliates. All rights reserved. F 370 G 0 H 60 J 90 STAAR Algebra I EOC Assessment Practice Algebra I STAAR Practice Test B 95

8 35 What kind of correlation is shown in the data in the table? x A positive correlation B negative correlation C no correlation D perfect correlation 37 What is the x-intercept of the graph of the function f(x) 5 x 9? Record our answer and fill in the bubbles on our answer document. 38 The line represented b the equation 5 x 1 is shown below. 36 Raul has 1 rubber balls, which are all either red or blue. He has twice as man red balls, r, as blue, b. Which sstem of equations could be used to calculate the number of balls of each color Raul has? F r 1 b 5 1 b r 5 1 G r 1 b 5 1 b r 5 0 H r 1 b 5 1 b 1 r 5 0 J r 1 b 5 1 r b 5 0 O x Which of the following best describes the change if the line becomes 5 3x 1? F The x-intercept increases. G The -intercept increases. H The x-intercept decreases. J The -intercept decreases. Copright Pearson Education, Inc., or its affiliates. All rights reserved. 96 Algebra I STAAR Practice Test B STAAR Algebra I EOC Assessment Practice

9 Copright Pearson Education, Inc., or its affiliates. All rights reserved. 39 A model rocket was fired upward at an initial speed of 50 meters per second. The function h 5 50t.9t shows the relationship between the time elapsed and the rocket s height above the ground, where t is the time in seconds and h is the height in meters. The graph of this function is shown below. Height (meters) Time (seconds) What is the best conclusion about the rocket s movement? A The rocket returned to the ground in about 10 seconds after it was fired. B The speed of the rocket was greatest at about 5 seconds after it was fired. C The rocket traveled 100 meters. D The rocket never reached the ground after being fired. 0 A local music festival offers a discount for group ticket sales. The cost per ticket and the number of tickets purchased per order form an inverse variation. If it cost \$1 per ticket when purchasing 15 tickets, how much does it cost per ticket when purchasing 0 tickets? F \$3 G \$6 H \$9 J \$15 1 The function f(x) 5 x 1 1,500 represents the total elevation of a mountain climber after x minutes. What does the slope represent? A the initial height of the mountain climber B the rate at which the mountain climber descends C the rate at which the mountain climber ascends D the total decrease in elevation Simplif the algebraic expression (x 1 3)(x 3) 3(x 1 x 1 1). F x 1 6x 17 G x 6x 1 H x 1 6x 1 1 J x 6x 1 17 STAAR Algebra I EOC Assessment Practice Algebra I STAAR Practice Test B 97

10 3 If Marli can jog 3 miles in minutes, how long will it take her to jog 5 miles if she jogs at the same rate? A 1.6 minutes B 1. minutes C 0 minutes D 10 minutes 5 The function f(x) 5 5x models the cost, f(x), of purchases x video games. What is the domain of the function? A all real numbers B all whole numbers C 0 to 5 dollars D all nonnegative multiples of 5 A function is described b the equation f(x) 5 3x 1 5. The replacement set for the independent variable is {1, 3, 5, 7}. Which set is the corresponding set for the dependent variable? F {1, 3, 5, 7} G {,, 10, 16} H {1, 3, 5, 7} J {16, 10,, } 6 At a convenience store, a gallon of milk and a bottle of water cost a total of \$.15. The cost of gallons of milk and 3 bottles of water is \$1.60. The following sstem of equations models this situation m 1 w 5.15 m 1 3w Which statement below describes the solution to this sstem of equations? F There is no reasonable solution to this sstem of equations because the number of bottles of milk must be a whole number. G There is no reasonable solution to this sstem of equations because the number of bottles of water cannot be negative. H There is a reasonable solution to this sstem of equations. J This sstem of equation has no solution. Copright Pearson Education, Inc., or its affiliates. All rights reserved. 98 Algebra I STAAR Practice Test B STAAR Algebra I EOC Assessment Practice

11 7 Jenn can spend no more than \$7 on school supplies. Each folder, f, costs \$0.50 and each pen, p, costs \$. Which of the following inequalities best represents the number of folders and pens she can purchase? F p \$ 7 1 f G 0.5f 1 p # 7 H.5(f 1 p), 7 J 0.5f \$ 7 1 p 8 What are the solutions to the quadratic equation x 1 x ? F 8 and 7 G 7 and 8 H 1 and 56 J 1 and A marketing compan uses the function 5 1x 1 8 to determine the cost of purchasing x concert tickets, where is the cost of the ticket and service charge. What does it mean if the compan changes the function to 5 1x 1 6? F The number of concert tickets sold decreased to 6. G The total cost for concert tickets decreased to \$6. H The cost per concert ticket decreased to \$6. J The service charge decreased to \$6. 51 Which equation best describes the graph below? 9 What is m, the slope of the line that is shown in the graph below? O x Copright Pearson Education, Inc., or its affiliates. All rights reserved. A 5 B O 6 8 x A 5 x 1 3 B 5 x 1 3 C 5 x 3 D 5 x 3 C 5 D 5 STAAR Algebra I EOC Assessment Practice Algebra I STAAR Practice Test B 99

12 5 Bob sold 1 magazine subscriptions, for a total of \$70.The cost of a one-ear subscription is \$0 and the cost of a two-ear subscription is \$70. How man two-ear subscriptions did he sell? F 5 G 6 H 7 J 8 5 A private lesson for guitar costs \$0 per lesson (l) plus an annual \$15 materials fee. Which equation represents the total cost (c) of private lessons for one ear? F l 5 0c 15 G c 5 0l 1 15 H c 5 0l 15 J l 5 0c Mrs. Austen has two retirement accounts. In one account, she placed \$15,000.This account decreased in value b 6.5% over the first ear. In her other account, she placed d dollars, and this account gained % in value in the first ear. Which equation describes v, the total value of her retirement accounts after the first ear? A v 5 15,000(1.065) 1 d(0.96) B v 5 15,000(0.935) 1 d(1.0) C v 5 15,000(1.065) d(0.96) D v 5 15,000(1.065) 1 d(1.0) Copright Pearson Education, Inc., or its affiliates. All rights reserved. STOP 100 Algebra I STAAR Practice Test B STAAR Algebra I EOC Assessment Practice

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