Question

If y = -x - 4 is horizontally stretched by a factor of 5, what is the equation after the transformation?​

Answer 1

• y = - 1/5x - 4

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The function f(x) is horizontally stretched when the function f(bx) has the value of b between 0 and 1.

We have a function y = - x - 4.

If we need to find the equation of horizontally stretch of this function by a factor of 5, then our b = 1/5.

So the function is:

• y = - 1/5x - 4