Math Quest: Algebra II ilearnmath.net
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1 ALGEBRA II: MISCELLANEOUS PROBLEMS (1 40) 1. The average of the numbers 5, 9, 10, 13, and a equals 11. Find the value of a. a. 16 b. 17 c. 18 d. 0. A shirt is on sale for $34.40, which is 0% off the original price. Find the original price of the shirt. a. $36.40 b. $41.8 c. $43.00 d. $ How many quarts of water does one add to 6 quarts of a 60% alcohol solution to create a 40% alcohol solution? a. qt. b. 3 qt. c. 6 qt. d. 9 qt. 4. Express (7 + 3i) ( 3i) in the form a + bi where a and b are real numbers. a. 5 6i b i c. 9 d i 5. Find the value of k that completes the square for x + 10x+ k. a. 5 b. 10 c. 5 d Find the solutions to the equation: x 14 = 6. a. x = 4, 10 b. x = 4, 10 c. x = 11, 17 d. x = 1, 14
2 7. Solve the inequality 7 < 4x + 3 1, and express the solution as an interval. a. (1, 4.5] b. [1.75, 7) c. (7/3, 17) d. [4.5, 5.5] Solve the inequality > 0, and express the solution as an interval 6x 4 a. ( 3, ) b. (7, ) c. (, 3) d. (, 7) 9. Solve the inequality x 10 < 3, and express the solution as an interval. a. (7, 8.5) b. (8.5, 10) c. (8.5, 11.5) d. (11.5, 13) 10. An object is shot upward with an initial velocity of 40 feet per second so that its height s (in feet) above the ground after t seconds is given by st ( ) = 16t + 40t. For what values of t will the object be at least 416 feet above the ground? a. [, 5] b. [, 13] c. [3, 5] d. [3, 13] 11. Find the distance d(a, B) between the points A( 1, 0) and B(4, 3). a. 3 b. 5 c. 34 d Determine the point A(x, y) so that the points A(x, y), B(0, 3), C(1, 0), D(7, ) will be the vertices of a parallelogram. a. A( 6, 1) b. A((3, 7) c. A(5, 6)
3 d. A(6, 5) 13. Find the midpoint of the line segment from A(, 9) to B(4, 5). a. C(1, 7) b. D(3, 7) c. P(4, 9) d. Q(5, 9) 14. Find the point on the positive y-axis that is a distance 5 from the point P(3, 4). a. A(0, 6) b. B(0,8) c. C(6,0) d. D(8,0) 15. Find the x-intercept and y-intercept of the equation 5x 3y = 30. a. 6 and 10 respectively b. 10 and 6 respectively c. 6 and 10 respectively d. 6 and respectively 16. Give the equation for the circle with center C(3, ) and radius 4. a. x + y = 5 b. ( x 3) + ( y ) = 16 c. ( x+ 3) + ( y ) = 4 d. ( x 3) + ( y+ ) = Give the center of the circle with equation a. A(, 4) b. B(1, 5) c. C( 1, 5) d. D(, 4) x + x+ y 10y+ = Find an equation for the line with slope 1/ and y-intercept 3. a. x/ y = 3 b. x + y = 6 c. x + y = 6 d. x y = 3
4 19. Find the slope of the line through the points A( 1, 6) and B(5, ) a. 1 b. /3 c. /3 d Find an equation for the line with y-intercept 3 that is perpendicular to the line3y = x 4. a. y = 6 3x b. y = 3x + 6 c. 3y = 9 x d. 3y = x Fahrenheit and Celsius temperatures are related by the equation F = 9 C + 3, where F is the temperature in degrees Fahrenheit and C is the temperature on the Celsius scale. If the temperature is a balmy 77 Fahrenheit, what is the temperature on the Celsius scale? a. 5 b c. 43 d. 45. If f( x) = x + 5, find f ( a+ h) f ( a). a. ah + h + 10 b. ah + h + 5 c. ah + h d. h 3. From a square piece of cardboard with width x inches, a square of width x 3 inches is removed from the center. Write the area of the remaining piece as a function of x. a. f ( x) = 6x 9 b. f ( x) = 6x+ 9 c. f( x) = x 9 d. f ( x) = x 6x 9
5 4. If P(4, 5) is a point on the graph of the function y = f(x), find the corresponding point on the graph of y = f(x 6). a. A(1, 8) b. B(, 5) c. C(6, 8) d. D(10, 10) 5. Explain how the graph of y 5 = ( x 3) can be obtained from the graph of y = x. a. Shift the graph of y = x left 3 units and down 5 units b. Shift the graph of y = x left 3 units and up 5 units c. Shift the graph of y = x right 3 units and down 5 units d. Shift the graph of y = x right 3 units and up 5 units 6. Determine e the vertex of y = x 8x+. a. A( 4, 11) b. B( 4, 18) c. C(4, 6) d. D(4, 8) 7. An object is projected upward from the top of a tower. Its distance in feet above the ground after t seconds is given by st ( ) = 16t + 64t+ 80. How many seconds will it take to reach ground level? a. 1 second b. 4 seconds c. 5 seconds d. 8 seconds 8. Find the maximum value of a. 8 b. 9 c. 10 d. 11 y x 6x = +.
6 9. Several values of the two function f and g are listed in the following tables: X f(x) X g(x) Find ( f o g)(6). a. 4 b. 5 c. 6 d Given f ( x) = 5x+ 7and gx a. ( g f)( x) = 5x + 7 b. ( g f)( x) = 5x + 4 c. ( g f)( x) = (5 x) + 14 d. ( g f)( x) = 5x + 70x+ 56 ( ) x 7 = +, find ( g f )( x). 31.
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