Algebra 1 Common Core Student Edition, Grade 8-9

4. W hat is th e solution of this system of equations?
   
   
   • 3 x + y = - 2
     x+ y=-6
     CD (-2 ,-6 ) CD (1,5)
   
   
   
   

• 2 )

un $200

mcU)$150

$100

cnru $50

$0

CD (-1,-5) CD (-3,

5. Jeremiah m ade the graph at the
   right to show how m uch m oney he
   saved after working for a few months.
   Which of the following represents
   the am ount of m oney Jerem iah had
   w hen he started working?
   CD x-intercept
   CD y-intercept
   CD slope
   CD domain


6. W hat is the value of x in th e eq u a tio n below?
   Vx - 8 = 12
   CD 11-4 C D 136
   CD 20 C D 152


7. W hat is the value of x in the eq u a tio n below?
   V4x + 8 = V3x + 13

Savings

Month, x

CD 5

CD 13

CD 21

CD 35

8. Eduardo is draw ing th e graph of a function. Each tim e
   th e x-value increases by 3, th e y-value decreases by 4.
   The function includes th e p o in t (1, 3). W hich could be
   Eduardo’s graph?

0 2 3 4

c

X y

2 -1

3 1

4 3

(^5) ^ )
v y

9. The d ata show n in th e table at th e right
   re p resen t points on a line. W hat is the
   y-intercept of th e line?
   CD -5
   CD -3
   CD o
   CD 2.5


10. W hat is th e factored form of 3x2 + 2xy - 8y2?
    CD (x + y) (3x — 8y)
    CD (x + 4y) (3x - 2y)
    CD (x + 2y) (3x - 4y)
    CD (3x+ 2y)(x-4y)

11. The form ula for th e area A of a circle is A = nr2, where

r is th e radius of th e circle. W hich e q u a tio n can be

u sed to find th e radius?

r =VAn^ A^2

r = ;

CD r= n

CD f= VAn

12. W hich function h asy-values th at always increase w hen
    th e corresp o n d in g x-values increase?
    CD y= |x| +2
    CD y = x2 + 2
    CD y = x + 2
    CD y = -x - l


13. W hat is th e solution of this system of equations?
    x + 2y = 23
    4x —y = - 7
    CD ( 1 , 11 ) CD (-1,-11)
    C D (-1 1 ,1 ) C D (11,1)


14. If th e graph of y = 5x — 4 is translated u p 3 units,
    w hich of th e following is true?
    CD The resulting line will have a slope th at is greater
    th a n th e slope of th e graph of y = 5x — 4.
    CD The resulting line will have th e sam e x-intercept as
    th e g raph of y = 5x — 4.
    C D The resulting line will b e parallel to th e graph of
    y = 5x — 4.
    CD The resulting line will have a slope of — 1.

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