CPM Homework Help : PCT Problem 1-42

Suppose $h\left(x\right) = 3x − 2$ and $j\left(x\right) = ax + b$ . Find a relationship between $a$ and $b$ such that $h\left(j\left(x\right)\right) = j\left(h\left(x\right)\right)$ .

Hint:

Manipulate the functions until you have an equation with a and b as the only variables.