If you horizontally stretch the quadratic parent function f(x) = x^2 by a factor of 4 what’s the equation of the new function

Horizontal stretch:

If a parent function y = f(x) ,

Replace x with result in horizontal stretch by a factor of n.

then a new function become

As per the statement:

Horizontally stretch the quadratic parent function by a factor of 4 .

By definition of Horizontal stretch:

A equation of new function become:

therefore, a equation of the new function is,

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9