Question

Which of the following functions shows the quadratic parent function,F(x) = x?, horizontally stretched?

Answer 1

The parent function is,

$F(x)=x^2$

The graph is stretched horizontally when x is replaced by kx where k is less than 1.

Thus, option (B) is the correct solution as x is replaced by x/2 in the F(x) to get G(x).

The red curve represents F(x) and the blue one represents G(x).