CPM Homework Help : PC Problem 9-26

Consider the graph of $y = \sin x$ . How would you change the equation to obtain a graph that looks like the one below?

Hint:

1. Change the amplitude to $5$ .
2. There are now $4$ cycles in $2π$ instead of $1$ .
So change the frequency ' $b$ '.

Periodic curve, x axis scaled from negative 1 fourth pi to 2 pi, with 9 visible turning points. first minimum at (negative 1 eighth pi, comma negative 5), first maximum at (1 eighth pi, comma 5).