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Write a function k(x) that has the following transformations from the parent function f(x) = x.
Do not simplify equation.
Vertical reflection over the x axis, vertical stretch by a factor of 4.
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Step 1. Vertical reflection over the x axis transforms the parent function f(x) = x
to function g(x) = -x.
Step 2. Vertical stretch by a factor of 4 transforms function g(x) = -x
to function k(x) = -4x.
ANSWER. k(x) = -4x.
Solved.