Algebra 1 Common Core Student Edition, Grade 8-9

38. W hat is th e solution of 3x + 7 = 25?
    CD =11
    CD =8
    CD x=7
    CD *=6


39. The volum e of a cylinder is given by th e form ula
    V= vr2h, where Vrepresents the volume, r represents
    the radius of th e base, an d h represents th e height of
    the cylinder. W hich equation can be used to find r in
    terms of V and hi

<S> ' = V Jh

r~xh

CD r = V Virh

CD r= y /f

40. 
    

    W hich of th e following functions can be used to find
    the nth term of the sequence 6,11,16, 21 , 2 6 ,...?
    CD A(n) = 5 + (n - 1 )( 6 )
    CD Aiji) = 6 + (n + 1)(5)
    CD A{n) = 6 + (n - 1)(5)
    CD A(n) = 5 + (n + 1 )( 6 )

    
    


41. 
    

    W hich of th e following is equivalent to V'64a2hi
    2 1
    CD 4aw3
    CD 64a2fe5
    CD 4 a2b
    CD 64 a2b

    
    


42. 
    

    W hat is a solution to th e system?

    
    

y = x2 + 2x — 15

y-4x= -12

CD (0,3)

CD (3,0)

CD (4,5)

CD (-5,3)

Co n st r u ct ed Re sp o n se

43. W hat is the y-coordinate of th e vertex of the function
    y = 2x 2 + 5x - 8?


44. Lisa is driving a car at an average speed of 55 m i/h.
    a. W hat is Lisa’s average speed in feet p er second?
    b. How m any feet will Lisa travel in 40 min?


45. The w idth of a rectangle is 10 in. less th a n its length. If
    th e p erim e te r of th e rectangle is 36 in., w hat is its w idth
    in inches?


46. Is th e question “Do you prefer delicious steak or
    ordinary m eatloaf for dinner?" biased? Explain.


47. A new toy store is open in g next week, a n d th e owner
    is deciding how to price one of th e toys. The equation
    S = —32p2 + 960p p redicts th e total sales S as a
    function of th e toy’s price p, w here S an d p are in
    dollars. W hat price will p ro d u ce the highest total sales?


48. A rectangular prism has a volum e of 6 x 4 - 13x3 - 5x2.
    W hat expressions can represent the dim ensions of the
    prism? Use factoring.

Ex t e n d e d Re sp o n se

49. The box-and-w hisker plots below show th e points
    scored by two college football team s in gam es over the
    course of one season.

Points per Game

0 10 20 30 40 50 60 70

W hat do th e m ed ian s tell you ab o u t each team ’s points

p er game?

50. Natalia sp en t $153 of h e r savings at th e mall. She
    bo u g h t clothes, a few p ap e rb ac k novels, an d an
    $18 DVD. She sp en t 4 tim es as m u ch on clothes as she
    did on th e paperbacks.
    a. W rite an eq u a tio n th a t can be u sed to determ ine how
    m u ch m on ey N atalia sp en t on the paperback novels.
    b. Use th e eq u a tio n to d eterm in e how m uch Natalia
    sp en t on paperbacks.

c

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