4. The time it takes to copy pages varies directly with the number of pages being copied. The copier at your office can copy 21 color pages per minute and 40 black and white pages per minute. Approximately how long will it take to copy 60 color pages and 35 black and white pages?
   6. 0.9 minute
   7. 2.5 minutes
   8. 2.9 minutes
   9. 3.7 minutes

5. Which equation is modeled by the graph?

   

   1. y = | 2 x − 3 | y equals vertical line 2 x minus 3 vertical line
   2. y = 2 | x − 3 | y equals 2 vertical line x minus 3 vertical line
   3. y = | 2 x + 3 | y equals vertical line 2 x plus 3 vertical line
   4. y = | 2 x + 3 | y equals vertical line 2 x plus 3 vertical line

6. What are the vertex and axis of symmetry for the given parabola?

   

   6. ( − 4 , 5 ) , y = 5 open negative 4 comma 5 close comma y equals 5
   7. ( − 4 , 5 ) , x = 5 open negative 4 comma 5 close comma x equals 5
   8. ( 5 , − 4 ) , y = − 4 open 5 comma negative 4 close comma y equals negative 4
   9. ( 5 , − 4 ) , x = 5 open 5 comma negative 4 close comma x equals 5
7. What is the product of 3 3 cube root of 3 ,  and 3 5 ? the fifth , root of 3 , , question mark
   1. 3 8 the eighth , root of 3 ,
   2. 9 8 the eighth , root of 9 ,
   3. 3 8 15 the fifteenth , root of 3 to the eighth end root ,
   4. 3 15 8 the eighth , root of 3 to the fifteenth end root ,
8. Solve the equation x 2 − 6 x = 3 x squared , minus 6 x equals 3  by completing the square.
   6. − 3 ± 2 3 negative 3 plus minus 2 square root of 3
   7. 3 ± 2 3 3 plus minus 2 square root of 3
   8. − 3 ± 3 2 negative 3 plus minus 3 square root of 2
   9. 3 ± 3 2 3 plus minus 3 square root of 2
9. Solve 7 x 2 + 196 = 0 7 x squared , plus 196 equals 0  for x.
   1. ± 4 i 7 plus minus 4 i square root of 7
   2. ± 2 i 7 plus minus 2 i square root of 7
   3. ± 4 7 plus minus 4 square root of 7
   4. ± 2 7 plus minus 2 square root of 7

10. Which inequality is modeled by the graph?

    

    6. k + 1 ≤ 7 k plus 1 less than or equal to 7
    7. | k + 1 | ≤ 7 vertical line k plus 1 vertical line less than or equal to 7
    8. k − 4 ≤ 3 k minus , 4 less than or equal to 3
    9. | k − 4 | ≤ 3 vertical line k minus 4 vertical line less than or equal to 3
11. Which equation represents a line that contains the point (3, 2) and is parallel to y = 3 x − 12 ? y equals 3 , x minus , 12 question mark
    1. y = 1 3 x − 7 y equals , 1 third , x minus 7
    2. y = 3 x − 7 y equals 3 x minus 7
    3. y = 3 x − 3 y equals 3 x minus 3
    4. y = 1 3 x − 3 y equals , 1 third , x minus 3

12. Which is the first incorrect step in simplifying x 9 y 6 z 3 ? cube root of x to the ninth , y to the sixth , z end root , . question mark

    Step  1 : x 9 y 6 z 3 = x 9 3 ⋅ y 6 3 ⋅ z 3 Step  2 : = x 3 ⋅ y 6 3 ⋅ z 3 Step  3 : = x 3 ⋅ y 3 ⋅ z 3 table with 3 rows and 1 column , row1 column 1 , cap step , 1 colon . cube root of x to the ninth , y to the sixth , z end root , . equals , cube root of x to the ninth end root , , dot , cube root of y to the sixth end root , , dot , cube root of z , , row2 column 1 , cap step , 2 colon equals , x cubed , dot , cube root of y to the sixth end root , , dot , cube root of z , , row3 column 1 , cap step , 3 colon equals , x cubed , dot , y cubed , dot , cube root of z , , end table

    6. Step 1
    7. Step 2
    8. Step 3
    9. Each step is correct.

13. A photographer is promoting three photo specials. How much does it cost for each type of print?

    

    1. 5 × 7  costs  $ 7 , 3 × 5  costs  $ 5 , Wallet  costs  $ 3 5 times 7 , costs , dollars 7 comma 3 times 5 , costs , dollars 5 comma , cap wallet . costs , dollars 3
    2. 5 × 7  costs  $ 11 , 3 × 5  costs  $ 7 , Wallet  costs  $ 3 5 times 7 , costs , dollars 11 comma 3 times 5 , costs , dollars 7 comma , cap wallet . costs , dollars 3
    3. 5 × 7  costs  $ 12 , 3 × 5  costs  $ 11 , Wallet  costs  $ 7 5 times 7 , costs , dollars 12 comma 3 times 5 , costs , dollars 11 comma , cap wallet . costs , dollars 7
    4. 5 × 7  costs  $ 7 , 3 × 5  costs  $ 5 , Wallet  costs  $ 5 5 times 7 , costs , dollars 7 comma 3 times 5 , costs , dollars 5 comma , cap wallet . costs , dollars 5
14. What is an equivalent form of 5 2 + 2 i ? fraction 5 , over 2 plus 2 i end fraction . question mark
    6. 5 4 i fraction 5 , over 4 i end fraction
    7. 10 − 10 i 4 − 4 i fraction 10 minus 10 i , over 4 minus 4 i end fraction
    8. 5 + 5 i 4 fraction 5 plus 5 i , over 4 end fraction
    9. 5 − 5 i 4 fraction 5 minus 5 i , over 4 end fraction

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