Which of the following functions has a vertex of (-7, 3)?

Question

1. f(x)=(x-3)^2+7
2. f(x)=(x-7)^2-3
3. f(x)=-(x+3)^2+7
4. f(x)=(x+7)^2+3

Answer 1

Standard form of a parabola is y=a(x-h)²-k. A parabola with vertex at (h,k) = (-7,3) will have the form o y=a(x+7)²-3. Selection 2