3. Which relation is not a function?
   1. { ( − 1 , 2 ) , ( − 2 , 2 ) , ( − 3 , 2 ) , ( − 4 , 2 ) open negative 1 comma 2 close comma open negative 2 comma 2 close comma open negative 3 comma 2 close comma open negative 4 comma 2 close }
   2. {(2, 1), (3, 2), (4, 3), (3, 1)}
   3. {(0, 1), (2, 1), ( 3 , − 1 ) , ( − 1 , 2 ) open 3 comma negative 1 close comma open negative 1 comma 2 close }
   4. {(4, 2), ( − 3 , 2 ) , ( − 2 , 1 ) , ( − 4 , 1 ) open negative 3 comma 2 close comma open negative 2 comma 1 close comma open negative 4 comma 1 close }
4. What is the vertex of the graph of y = 2 x 2 − 4 x + 5 ? y equals 2 , x squared , minus 4 x plus 5 question mark
   6. (1, 5)
   7. (3, 1)
   8. (1, 3)
   9. (5, 0)
5. Which equation has 2 − 3 2 minus square root of 3  as one of its solutions?
   1. x 2 + 4 x + 1 = 0 x squared , plus 4 x plus 1 equals 0
   2. x 2 − 4 x + 1 = 0 x squared , minus 4 x plus 1 equals 0
   3. x 2 + 4 x − 1 = 0 x squared , plus 4 x minus 1 equals 0
   4. x 2 − 4 x − 1 = 0 x squared , minus 4 x minus 1 equals 0

6. The equation for the circle below is x 2 + y 2 = 9 . x squared , plus , y squared , equals 9 .  If the graph is translated one unit up and two units to the left, what is the new equation?

   

   6. ( x − 1 ) 2 + ( y + 2 ) 2 = 9 open x minus 1 close squared . plus . open y plus 2 close squared . equals 9
   7. ( x + 1 ) 2 + ( y − 2 ) 2 = 9 open x plus 1 close squared . plus . open y minus 2 close squared . equals 9
   8. ( x − 2 ) 2 + ( y + 1 ) 2 = 9 open x minus 2 close squared . plus . open y plus 1 close squared . equals 9
   9. ( x + 2 ) 2 + ( y − 1 ) 2 = 9 open x plus 2 close squared . plus . open y minus 1 close squared . equals 9

7. In six basketball games, you scored the following points per game. What is the approximate standard deviation of points scored?

   8 11 14 7 12 18

   1. 1.0
   2. 2.0
   3. 4.0
   4. 5.0
8. Which sequence has a common difference of 3?
   1. a n = a n − 1 − 3 , a 1 = 2 eh sub n , equals . eh sub n minus 1 end sub . minus 3 comma , eh sub 1 , equals 2
   2. a n = 3 eh sub n , equals 3
   3. a n = a n − 1 + 3 , a 1 = − 7 eh sub n , equals . eh sub n minus 1 end sub . plus 3 comma , eh sub 1 , equals negative 7
   4. a n = n 2 + 3 eh sub n , equals , n squared , plus 3
   6. I only
   7. III only
   8. II only
   9. II and IV
9. Which number completes the square for x 2 − 3 x ? x squared , minus 3 x question mark
   1. 9
   2. − 3 2 negative , 3 halves
   3. − 9 2 negative , 9 halves
   4. 9 4 9 fourths
10. What are the solutions to 9 x 2 + 4 = 0 ? 9 x squared , plus 4 equals 0 question mark
    6. ± 2 plus minus 2
    7. ± 2 3 i plus minus , 2 thirds , i
    8. ± 2 3 plus minus , 2 thirds
    9. ± 2 3 plus minus , square root of 2 thirds end root
11. If f ( x ) = x 2 − 1 f open x close equals , x squared , minus 1  and g(x) = |2x + 3|, which has the greatest value?
    1. f(g(3))
    2. g(f(2))
    3. g ( f ( − 1 ) ) g open f open negative 1 close close
    4. f(g(10))
12. If f ( x ) = 2 x 2 f open x close equals , 2 x squared  and g(x) = 3(x + 1), which is an equivalent form of f(x) + g(x)?
    6. 2 x 2 + 3 x + 1 2 x squared , plus 3 x plus 1
    7. 2 x 2 + 3 x + 3 2 x squared , plus 3 x plus 3
    8. 2 x 2 + 3 x − 3 2 x squared , plus 3 x minus 3
    9. 5 x 3 + 3 5 x cubed , plus 3
13. The first term of an arithmetic series is 123. The common difference is 12 and the sum is 1113. How many terms are in the series?
    1. 7
    2. 8
    3. 9
    4. 10
14. In the equation y = 2 x 2 − x − 21 , y equals 2 , x squared , minus x minus 21 comma  which is a value of x when y = 0 ? y equals 0 question mark
    6. − 21 negative 21
    7. 1 1 2 1 , and 1 half
    8. 3
    9. 3 1 2 3 , and 1 half

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