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4-75.

Using the graph of $f(x)$ at right, sketch the following functions.

1. $f(2x)$

When $x = 3$, the transformed function has a $y$-value of $f(6)$.

2. $f(\frac { 1 } { 2 }x)$

When $x = 4$, the transformed function has a $y$-value of $f(2)$.

3. $f(-x)$

Think about the relationship between the location of '$x$' and '$-x$'.

It reflects the graph across the $y$-axis.

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