Algebra 1 Common Core Student Edition, Grade 8-9

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Time

4. The graph at the right shows how
   M anuel's height changed d uring
   th e p ast year. W hich conclusion
   can you m ake from th e graph?
   CD His height is average.
   CD He will grow m ore next year.
   CD His height did n o t change
   during th e year.
   CD His height steadily increased d uring th e year.


5. W hat is the y-intercept of the
   graph at the right?
   CD -3
   CD -2

\

CD 4

-3^0

CD o

6. W hich cannot be rep resen ted by a linear function?

CD the area of a square, given its side length

CD the price of fruit, given th e w eight of th e fruit

C D the n u m b er of steps on a ladder, given th e height

CD the n u m b e r of inches, given th e n u m b e r of yards

7. A light-year is the distance light travels in one year.
   One light-year is ab o u t 5.9 X 1012 mi. If it takes light
   3 m onths to travel from one star to another, ab o u t how
   far apart are th e stars?
   C D 2 X 103 m i CD 1.5 X 1012 m i
   CD 1-5 X 104 m i CD 2 X 1012 m i


8. Use th e graph at th e right.
   Suppose the y-intercept
   increases by 2 an d the slope
   stays th e sam e. W hat will the
   x-intercept be?
   CD -3 CD 1
   CD -2 CD 4


9. W hich expression is equivalent to \ / 8 1 x 3?

CD 81xJ CD 3X3

CD 3xi CD (3x:)*

10. The dim ensions of a rectangular
    prism are show n in th e diagram
    at th e right. W hich expression
    represents the volume of the
    rectangular prism?
    CD a2b 5 C D
    CD a2b 6 C D


11. Suppose you are buying apples an d bananas. The price
    of apples is $.40 ea ch a n d th e price of b an a n as is $.25
    each. W hich eq u a tio n m odels th e n u m b e r of apples
    an d b a n a n a s you can buy for $2?
    C D 40x + 25y = 200 CD 5x+8y=200
    CD 40x — 25y = 2 CD 5x + 8 y = 2


12. At lunchtim e, M itchell cast a shadow 0.5 ft long while a
    n earby flagpole cast a shadow 2.5 ft long. If Mitchell is
    5 ft 3 in. tall, how tall is th e flagpole?
    CD 26 ft 3 in.
    CD 26 ft 4 in.
    CD 26 ft 5 in.
    CD 26 ft 6 in.


13. Laura re n te d a car th a t cost $20 for th e day plus $.12
    for ea ch m ile driven. She re tu rn e d the car later that
    day. Laura gave th e salesperson $50 an d received
    change. W hich inequality represents th e possible
    n u m b ers of m iles m th a t she could have driven?
    C D 50 > 0 .1 2 m + 20
    CD 50 < 0.12m + 20
    CD 50 > 0 .1 2 m - 2 0
    CD 50 < 0 .1 2 m - 2 0


14. A doctor did a 6 -m o n th study on resting h e a rt rate
    a n d exercise in healthy adults. The d octor found that
    for every 20 m in of exercise a d d e d to a daily routine,
    th e resting h e a rt rate decreased by 1 b ea t p er m inute.
    According to th e doctor's study, w h at does the resting
    h e a rt rate d e p e n d on?
    CD th e 6-m o n th study
    CD m in u tes of exercise
    CD a daily routine
    CD diet

mfliL | Ch a p t e r 7 Common Core Cumulative Standards Review^481