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. The domain is all real numbers. Check all that apply.f (x) = x^2 + 4x + 3f (x) =.

See examples and solutions for five functions with different coefficients. Check all that apply.f (x) = x^2 + 4x + 3f (x) =. Click here to get an answer to your question: