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Algebra 2
Practice Quiz 238

Click the circle next to the correct response.
Be sure to click the OK button to continue.

Solve.

1.  2x + 6 = 12

-3
3
9
-9

 

 2.  | 2x + 6 | = 12

-3
3
9
-9

 
3. x2 = 9

-3
3
9
-9

 

 4.  | x | = 9

-3
3
9
-9

 
5.  (x + 9)(x - 3) = 0

-3
3
9
-9

 

 6. x2 - 16 = 0

- 4
- 16
  16
  4

 
7. x2 + 6x - 27 = 0

-3
3
9
-9

 

 8. x2 - 6x = 27

-3
3
9
-9

 
9.  5x + 3y = 27
     2x + y = 12

x = - 9 , y = 6
x = 9 , y = -6
  -9

 

 10.  5x - 2y + 7z = 12
       2x + 5y + 3z = 10
       3x - y + 4z = 8

x = 7 , y = 1 , z = -3
no solution
x = .7 , y = -0.1 , z = 3

 
11.  x + y = 2
       2y - z = 0
       -x - y + z = -1

x = -1.5 , y = -0.5 , z = -1
no solution
  x = 1.5 , y = 0.5 , z = 1

 

 12. For y = | x |, how is the graph of g(x) = | x + 7 | - 3 the same/different.

  moves up 7
moves left 7
 moves down 3
 moves left 3

 
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