Question

Which equation represents the axis of symmetry of the function y = –2x² + 4x –6?

y = 1

x = 1

x = 3

x = –3

Answer 1

the axis of symmetry would be the x-value for the vertex (since that's also where the graph stops going one way and starts going the other way.)
for y= ax^2 + bx + x
axis of symmetry: x = -b / 2a

Answer 2

+bx + c, not bx + x.

Answer 3

x = 1;
x= -b/2a = -4/(2 * -2) = -4/-4 = 4/4 = 1/1 = 1