a. 4
through (0,7), (1, 14)
c. 7.
6. What is the axis of symmetry of the parabola y2 + 4x +4?
a. 2
2
b. 4
7. What is the value of c of a quadratic function that p
and (2,25)?
a. 2
b. 5
d. 14
8. What must be added to x2 -10x to make it a perfect square trinomial?
a. 5
c. 20
b. 10
d. 25
9. The graph of g(x) = -x2 + 2x + 1 opens
a. Upward
c. downward
b. To the left
d. the right
10. What is the quadratic function f(x) whose zeros are 2 and -7?
a. f(x)= x2 + 5x -14
c. f(x)= x2-3x -14
b. f(x)= x2 - 5x +14
d. f(x)= x2 + 5x +14
11. Find two numbers whose sum is 8 and whose product is a maximum.
a. 4 and 4
c. 2 and 6
b. 3 and 5
d. 1 and
12. Find two real numbers whose sum is 16 and whose product is a maximum.
a. 6 and 10
c. 9 and 7
b. 8 and 8
d. 5 and 11
13. A man with 160ft. of fencing materials wishes to fence off an area in the shape of
a rectangle. What should be the dimensions of the area if the enclosed space is
to be as large as possible?
a. 20ft. by 20ft.
C. 40ft. by 40ft
b. 30ft. by 30ft.
d. 80ft. by 80ft.​