8. How is f(x) = x2 - 6x + 14 written in vertex form?
A. f(x) = (x + 3)2 + 2
C. f(x) = (x-6)2 + 5
B. f(x) = (x-3)2 - 5
D. f(x) = (x-3)2 + 5
9 What do you call the graph of a quadratic function?
A. Parabola
B. Line
C. Circle
10. What is f(x) = (x+1)2 - 3 in general form?
A. f(x) = x2 + 2x - 4
C. f(x)= x2 + 2x + 2
B. f(x) = x2 + 2x - 2
D. f(x) = x2 + 2x + 4
11. What is the vertex form of x2 + 4x + 1?
A. f(x) = (x + 3)2 + 2
C. f(x) = ( x + 2)2-3
B. f(x) = (x + 3)2 - 3
D. f(x) = (x - 3)2+5
12. The vertex of the quadratic equation f(x) = ( x + 1)2 - 2 is
A. (1,-2)
B.(-1,2) C. (1,-2)
13. What is the range of the quadratic function f(x)= -5(X+ 1)2 + 4?
A. y S4
Boys 4 C. y 21
D.(-1,-2)
D.y 2-1​