Practice problem
Let f(x)=7xf(x)=7xf(x)=7x. What is f(cx)f(cx)f(cx) if c=2c=2c=2?
72x\dfrac{7}{2}x27x
27x\dfrac{2}{7}x72x
9x9x9x
14x14x14x
Type a concept, like “slope” or “photosynthesis”.
