Question

Which functions have an axis of symmetry of x = –2? Check all that apply.

f(x) = x2 + 4x + 3
f(x) = x2 – 4x – 5
f(x) = x2 + 6x + 2
f(x) = –2x2 – 8x + 1
f(x) = –2x2 + 8x – 2

Answer 1

f(x) = x^2 + 4x + 3

f(x) = -2x^2 - 8x + 1

Explanation:

The first one and the fourth one.

Also, you can use a graphing calculator and see if the vertex is at -2 on the x-axis.

Answer 2

The answers are f(x) = x2 + 4x + 3 and f(x) = –2x2 – 8x + 1

Explanation:

i did it on edge