Which function is a horizontal compression of its parent function f(x)=x^7 by a factor of 4? q(x)=(1/4x)^7 r(x)=(4x)^7 s(x)=4x^7 t(x)=1/4x^7 you!

Note that what we want is to compress any point (a, b) in the parent function, to (a, b/4).

(a, b) is a point of the graph of the function , thus we can rewrite the point as:
                                     .

This point is compressed to 

                                   .

This means that the function we are looking for is .

 t(x)=1/4x^7

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