F(x)=x^2+8x+15
complete the square, you must know this procedure!
= (x^2 + 8x + 16 - 16) + 15
= ( (x+4)^2 - 16) + 15
= (x+4)^2 - 1
Rewrite the function in f(x)=a(x-h)^2+k form.
Graph it by using the transformation.
F(x)=x^2+8x+15
1 answer