The graph above shows a function $y = f(ax)\text{,}$ where $a$ is a constant number. Use the slider to change $a$ to a number greater than $1\text{,}$ and notice the change to the graph. Answer: ? It was stretched It was compressed Now use the slider to change $a$ to a number between $0$ and $1\text{,}$ and notice the change to the graph. Answer: ? It was stretched It was compresses If you wanted to compress the graph of $f$ so that it was exactly half as wide as it started out, you would use which transformation below? y = f(2x)
y = f(0.5x) If you wanted to stretch the graph of $f$ so that it was exactly twice as wide as it started out, you would use which transformation below? y = f(2x)
y = f(0.5x)