Its -1,3
y=4x2+8x+7
There is a formula for finding the vertex= y=ax2+bx+c
h=−b2a and k=c−b24a
Solve for h with a=4 and b=8 and c=7
h=−b2a=−82⋅4=−1
=−b2a=−82⋅4=−1
Solve for k
k=c−b24a=7−824⋅4=7−6416=7−4=3
Our vertex is at (−1,3)
y=4x2+8x+7 with vertex at (−1,3)
