40 TKS Name Mied Practice Items 1 Which is the dependent variable in the function y f() 4 4? f y 4 2 homeowner s monthly bill (k) for electricity is a function of the basic service charge, $7.8, and 8. for each kilowatthour used. Which function models the rule for a homeowner who uses k kw-h? 4 ind the range of the function y 4 1 when the domain is { 2, 0, }. { 9, 0, 11} { 7, 1, 1} {7,, 1} {9,, 12} The square of an unknown quantity is multiplied by and added to 20. The result of this operation is equal to 400 divided by the same unknown quantity. Which is the correct algebraic representation of this situation? (k) 7.8 (k) 7.8k 0.08 k (k) 7.8k 0.08 (k) 7.8 0.08k 20 2 2 20 2 20 400 400 400 y 20 2 400 In the equation y 6 2, as increases, y increases. y decreases. y increases then decreases. y decreases then increases. 6 Simplify: (2 2) ( 7) 1 2 7 2 16 2 1 2 O ON
7 Which of these describes a linear relationship? the speed of a rocket and the distance traveled the circumference of a bike tire and the speed of a bicycle the length of a film and the price of admission the number of words on a page and the length of a book 8 What is the slope of the linear function 4y 16? 10 commuter airline that runs from San ntonio to orpus hristi has strict weight limits for passengers and their luggage. The planes are able to carry passengers up to a total weight of 1 ton. The planes can also carry 1. tons of cargo or luggage. The airline estimates the weight of each female passenger (f) as 140 pounds and each male passenger (m) as 190 pounds. Which inequality could you use to determine the possible combinations of male and female passengers that would not endanger the planes? f m 2,000 140f 190m 2,000 2.(140 190) f m 190(f m) 2,000 4 9 etermine the - and y-intercepts of the line y 1. 4 16 -intercept ; y-intercept 1 -intercept ; y-intercept -intercept ; y-intercept 1 11 Which line would be a reasonable line of best fit for the data graphed in the scatter plot? 9 8 7 6 4 2 1 y 1 2 line a: y 2 4 line b: y 2 6 6 7 line c: y 0.7 0.6 line d: y 0.7 0.4 4 a b 8 9 c d -intercept ; y-intercept O ON TKS 41
42 TKS 12 Shelly s Unshelled Nut Shop sells a variety of nuts at different prices. Wally bought 2 pounds of cashews and 2. pounds of pecans and paid $17.7. Several weeks later, Wally bought 2. pounds of cashews and 1. pounds of pecans and paid $1.20. Wally reasoned that the nut shop charged $.0 and $4.0 per pound for the different kinds of nuts. Which statement is the most reasonable interpretation of Wally s solution? 1 The area of a parallelogram is 9 10 y 12 square units. The height of the parallelogram is y 4 units. What is the base of the parallelogram? 6 2 y units 2 y units y 8 units 6 y 8 units Wally likes cashews and pecans, but not other kinds of nuts. The nut shop charges $.0 per pound for pecans and $4.0 a pound for cashews. Wally s solution is correct. The nut shop charges $.0 per pound for cashews and $4.0 a pound for pecans. 16 quadrilateral with eactly one pair of parallel sides is a. parallelogram rectangle trapezoid kite 1 What is the effect on the graph of the equation y 2 when the equation is changed to y 2? The graph moves down units. The graph moves up 6 units. The graph is reflected across the -ais. The graph moves down 6 units. 17 reta has 0 feet of fencing to use for a small dog kennel. Which shape will result in the greatest area? a square a right isosceles triangle an equilateral triangle a circle 14 Solve 2 6 8 0. 2, 4 2, 4 2, 4 2, 4 18 is a rhombus. The measure of is 9. The measure of is. 1 9 118 121 O ON
19 Which two letters show a rotation? 22. The net below will fold to make a. b d b p d p d q rectangular prism trapezoidal prism rectangular pyramid cube 20 The length of the diagonal of the rectangle is centimeters. 28 cm y 2 The top, side, and front views of an object built with cubes are shown below. What is the value of y? 7!2 cm Top view Side view ront view 14!2 cm 21 cm 28 cm ow many cubes are needed to construct this object? 6 7 8 11 21 Which of the following rotations would not map a regular heagon onto itself? 60 90 120 240 24 Line MN contains the points M(11, 6) and N(, 2). Which of these lines is parallel to line MN? 7 y 10 2 y 2 7 14 4y 27 21 6y O ON TKS 4
44 TKS 2 Which of the lines is perpendicular to the line y 1.2 8.? 28 ind the area of the isosceles trapezoid. 12 cm y 1.2.8 y 2 6 y 0.8 6.1 y 6 9 26 diameter of a circle has endpoints X( 21, 4) and Y(11, 8). The coordinates of the center of the circle are. ( 17, ) ( 16, 6) ( 10, 4) (, 2) 6 cm 4 cm 2 6 cm 2 72 cm 2 108 cm 2 29 The circumference of a circle is 10 inches. The area of the circle is. 10 in. 2 10 in. 2 20 in. 2 2 in. 2 9 cm 27 What is the length of the segment with endpoints (14, ) and (9, )? 8 1!1!89 0 What is the value of? 12 21 21!2!8 12!!297 O ON
1 pyramid has a rectangular base that is 1 meters by 1 meters. The height of the pyramid is 11 meters. What is the volume of the pyramid? 71 m 1,072. m 2,14 m 4,290 m 2 What is the value of n? 6 2..0 4.0 4. 7 n 4 The omputer onnection is having a yearend sale. ll computers are being sold at a 20% discount. omputer onnection employees get an additional 7.% discount. If the regular price of a computer is $1,120.00, how much would a computer cost an employee during the year-end sale? $291.20 $828.80 $896.00 $1,02.80 t the fall carnival, there is a game where you choose a 4-digit number. Each digit must be from 1 to 6. You try to match your number by rolling a number cube 4 times. ow many different 4-digit numbers are possible? 24 96 1,296 4,096 The volume of a large sphere is 27 times greater than the volume of a small sphere. The surface area of the small sphere is 64 cm 2.The surface area of the large sphere is. 192 cm 2 192! cm 2 76 cm 2 1,728 cm 2 6 newspaper is doing a story on eecutive salaries. The reporter wants to determine the middle-most salary for the top eecutives of the ortune 00 companies. Which would be the most appropriate measure of central tendency to use in making this determination? mean median mode range O ON TKS 4
46 TKS 7 or a given year, the average daily temperature for ustin in anuary was 49.1, and the average daily temperature in uly was 84.7. Which statement is true? The daily temperature in ustin ranges from 49.1 to 84.7. ustin s average daily temperatures for anuary and uly are the same as the entire state of Teas. If you add all the average daily temperatures in ustin for the given year in anuary and in uly, then divide each sum by 1, you will get 49.1 and 84.7. If you randomly select a day in anuary, the temperature will always be lower than a randomly selected day in uly. 40 Tammy, Tomas, and pril all work at a restaurant. Each earns $.00 per hour plus tips. uring an average shift, each of them earns about $4.00 in tips. Tammy works 14 hours a week, ail works 21 hours a week, and pril works 0 hours a week. What piece of information is needed to calculate their total earnings for a week? the length of a shift which days of the week each person works how much withholding ta is taken out of their paychecks how many shifts each person works 8 Nikita s band recorded a of its newest songs. The recording studio charged $0 per hour for hours of studio time. Each costs $.12 to manufacture, and the band ordered 00 s. What is the least number of s Nikita s band will have to sell to break even if the band charges $1.0 for each? 10 142 246 2 41 Suppose you deposit $1,00 in an account paying 6% interest, compounded quarterly. Which epression represents the interest earned at the end of n years? 1,00 1.06 n 1,00 1.01 (4n) 1,00(1.06 n 1) 1,00(1.01 (4n) 1) 42 Which property of mathematics allows us to conclude that 6r (r 2 21) 18r 126r? 9 Keesha has two fewer nickels than dimes and seven fewer dimes than quarters. The total value of coins is $6.8. ow many quarters, dimes, and nickels does Keesha have? associative property law of eponents commutative property distributive property 9 quarters, 2 dimes, 0 nickels 1 quarters, 11 dimes, 20 nickels 20 quarters, 1 dimes, 11 nickels 2 quarters, 18 dimes, 16 nickels O ON
Questions 4 and 44 are open-ended griddable items. 4 You need to paint a large circle for your school s logo in the school s parking lot. The circle has a diameter of 12 feet. If a gallon of paint covers 200 square feet, how many quarts of paint will you need? 44 Theo was reconciling his checking account. is monthly bank statement for une showed that he had a beginning balance of $42.78 and an ending balance of $89.0. e made one deposit of $68.20 on une 10 and another deposit on une 24 for $47.96. ow much did Theo withdraw from his checking account during the month? STOP TKS 47