CPM Homework Help : INT3 Problem 10-58

Write a possible equation for the graph below.

Repeating wave curve, first visible high & low points: (pi halves, comma 6) & (3 pi halves, comma negative 2), continuing in that pattern, just past 2 pi, with additional highlighted points, (pi, comma 2), & (2 pi, comma 2).

Hint:

Determine how the graph is altered from the graph of $y = \sin\left(x\right)$ . What is the amplitude? Where is the midline?

Answer:

$y = 2 + 4 · \sin\left(x\right)$