Question

1. Parent Quadratic Equation

2. Coordinate of the vertex

3. quadratic formula

A. -b/2a

B. y = 2x

C.b^2 - 4ac

D. y = a(x - h)^2 + k

E. x = -b +/- (square root of) b^2 -4ac/2a

I think the answers are:

1. B
2. C
3. E

Are these correct?

Thanks!

Answer 1

Not quite:

A: x-coordinate of the vertex, also of the axis of symmetry
B: not a quadratic at all; just a line
C: the discriminant
D: likely the parent equation
E: quadratic formula. Note how the roots are equally spaced around x = -b/2a