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We can stretch or compress it in the y-direction by multiplying the whole function by a constant.
stretches it compresses it
Summary: for future reference
We can do all transformation in one go using this:
is vertical stretch/compression
stretches compresses flips the graph upside down
is horizontal stretch/compression
compresses stretches flips the graph left-right
is horizontal shift
shifts to the right shifts to the left
is vertical shift
shifts upward shifts downward
