Question

Where is the vertex of the parabola? y = x2 + 2x – 3?

Answer 1

=x2−2x−3y=x2-2x-3



(x−1)2−4(x-1)2-4

Use the vertex form, y=a(x−h)2+ky=a(x-h)2+k, to determine the values of aa, hh, and kk.

a=1a=1

h=1h=1

k=−4k=-4