Question

Compare and contrast the two quadratic equations below. In order to receive full credit, use complete sentences to describe the following:

The direction each parabola opens
The vertex of each parabola
y = x2 − 2x
y = −2x2 + 4x − 3

Answer 1

What is your mean ???
In y = x2 − 2x we have :
x2-2x=0 y=0
In y = −2x2 + 4x − 3 we have :
-4x+4x-3 = -3 y=-3