Question 367166
<pre><font size = 3 color = "indigo"><b>
Hi, 
Proceeded exactly as one should.
If you have used the correct value for the y-intercept. all's well.
**Listed is a y-intercept (0,1)
{{{1 = a(0 + 1)^2 - 3}}}
a = 4
vertex form
y = 4*(x+1)^2 - 3
general form
4x^2 + 8x + 1