- #1

chwala

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## Homework Statement:

- let ##f(x)= (\sin 2x + \cos 2x)^2## and ## g(x)= cos 2x-1## The graph of ##y=g(x)## can be obtained from the graph of ##y=f(x)## under a horizontal stretch of scale factor ##k## followed by a translation of vector ##(p,q)##, find the exact values of ##k, p, q##

## Relevant Equations:

- horizontal and vertical stretch....

kindly note that this solution is NOT my original working. The problem was solved by my colleague. I have doubts with the ##k## value found. Is it not supposed to be ##k=0.5?## as opposed to ##k=2?##. From my reading on scaling, the graph shrinks when ##k## is greater than ##1## and conversely.