Name Date Hr. ALGEBRA 1-2 SPRING FINAL MULTIPLE CHOICE REVIEW #2

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1 Name Date Hr. ALGEBRA - SPRING FINAL MULTIPLE CHOICE REVIEW # 5. Which measure of ceter is most appropriate for the followig data set? {7, 7, 75, 77,, 9, 9, 90} Mea Media Stadard Deviatio Rage 5. The umber of calls received b a techical support ceter durig radoml selected das is liste Idetif the outlier, ad describe how it affects the me The outlier is. The outlier i the data set causes the mea to decrease from about. to about.7. The outlier is. The outlier i the data set causes the mea to icrease from about. to about 9.. The outlier is. The outlier i the data set causes the mea to decrease from about 9. to about.. The outlier is. The outlier i the data set causes the mea to decrease from about. to about Look at the box-ad-whisker plot of these data below. Which coclusio is NOT correct? 50% of the data is betwee 5 ad 59. 5% of the data is betwee 59 ad 9. The data is ormall distribute 50% of the data is greater tha The followig box plots show the umber of me ad wome erolled i Art 0 across a group of colleges. Select the statemet that is INCORRECT. The media umber of wome i a class is higher tha the media umber of me. 50% of the classes had betwee 9 ad 0 me. All of the classes had at least 0 wome. There was more variatio/spread i the umber of wome i classes the me i classes.

2 55. Cosider the followig dot plot. Which coclusio about the distributio is correct? This data distributio is skewed to the left. The mea would be icreased b the skew. This data distributio is skewed to the right. The mea would be icreased b the skew. This data distributio is skewed to the left. The mea would be decreased b the skew. This data distributio is skewed to the right. The mea would be decreased b the skew. 5. The back-to-back stem-ad-leaf plot shows the scores of two classes o a recet Algebra exam. Compare the scores of the studets i the two classes. Which of the followig is a valid coclusio based o the data? The mea of Class is lower tha the mea of Class. 7 out of studets i Class scored i the 70s. Class has a higher rage. Class has a higher stadard deviatio. 57. Give the sequece,,,, Fid the 0 th term of the sequece Give the sequece,, 5,, Fid the th term of the sequece Select the correct recursive sequece formula for the area of the figures below. a a ad a a ad a a a a a ad a a ad a

3 0. You ca bu chocolate bars for $.00, 5 chocolate bars for $.50, chocolate bars for $.00, ad 7 chocolate bars for $.50. Which fuctio C could be used to model the total cost of buig chocolate bars? C 0.5 C 0.5 C 0.5 C 0.5. Cosider the sequece give b the recursive formula: a 5a where a. Which explicit formula below represets the same sequece? a 0 5 a 5 a a 5. Scott eeds at least $,000 for a dow pamet o a car. He ivests $,000 i a bak that pas % iterest compouded auall. How ma ears will it take him to meet his goal? 5 ears 0 ears ears ears. What is 7 i expoetial form? 7 7. Write i radical form.

4 5. Which of the followig fuctios is a example of a expoetial deca fuctio? f ( x) 0.9x f( x) 00(7) x f( x).5(0.9) x f ( x) x 9 7. For which fuctio will the values of decrease as values of x icrease? x 7. Choose the correct graph of the followig sceario: You have te CDs. That umber doubles each ear Thor purchased a car for $,900. The car depreciated at a aual rate of %. Which of the followig equatios models the value of Thor s car after 5 ears. A, A, A,900 5 A, Which table satisfies a expoetial fuctio? x x 0 0 x 0 x

5 70. Simplif the followig: m 5 7 m m m 5 7m 5 7m 7m 7. Fid the product of x ad x x 9 x x x x x x x x x x x x 7. Which polomial is equivalet to x? x 9 x 9 x x 9 x x 9 7. Factor completel: x x xx x x xx x x x 7. Factor the polomial: x 0x 7 x7x xx 7 xx 7 x7x 5

6 75. Factor the polomial: x 9x 0 Which of the followig biomials is ONE of the factors? x (x ) (x 5) (x 5) 7. Fid the solutio set to the followig quadratic equatios: x x 0 0 { 5, } { 0, } {, 0} {, 5} 77. Solve for x: x 7 7 5, 7 7. Solve for x usig the quadratic formula: x 7x No Real Root 79. What are the roots of the fuctio whose graph is show: ad ad ad ad 0. Determie which graph below is the correct graph for the equatio: x x

7 . The equatio h( t) 0t t models the height h, i meters, of a soccer ball after t secods. Explai the meaig of (., 0) i the cotext of the problem. The soccer ball reaches its maximum height at. secods. The soccer ball touches the groud at. secods. The soccer ball travels a total of. meters. The soccer ball reaches its maximum height at. meters.. Fid the vertex ad the equatio of the axis of smmetr of this parabola: (, ), x = (, ), x = (, ), x = (, ), x = x x. Suppose ou throw a baseball ito the air with a iitial upward velocit of 9 ft/s ad a iitial height of ft. The formula h( t) t 9t, gives the ball s height h i feet at time t i secods. Fid the umber of secods that pass before the ball hits the grou secod secods secods secods. Which of these sets of ordered pairs satisfies a expoetial equatio. (,),(,),(,),(,) (, ),(,),(,),(,0) (, ),(, ),(, 7),(, ) (, ),(, ),(, 9),(, ) 5. Compare the graph of g x x to produce the graph of f x x The graph of g(x) is wider. The graph of g(x) is arrower. The graph of g(x) is traslated uits dow from the graph of f(x). The graph of g(x) is traslated uits up from the graph of f(x).. Solve the sstem:,0,,0 x x?,0,,,0,,,0,, 7. Which is the graph of f x x? 7

8 . Which of the followig fuctios will icrease the MOST as x gets larger ad larger? f x 5 x h x x m x 5x k x h x 9. Graph x if x x if x x x x x Graph g x x. Compare with the graph of f x x. The graph of g(x) is uits above The graph of g(x) is uits to the graph of f(x). the left of the graph of f(x) x x 0 The graph of g(x) is uits to The graph of g(x) is uits below the right of the graph of f(x). the graph of f(x) x x 0