[tex]\begin{gathered} \text{average rate of change = }\frac{change\text{ in y}}{\text{change in x}} \\ \text{average rate of change = }\frac{152-76}{4-2} \\ \text{average rate of change=}\frac{76}{2} \\ \text{average rate of change= }38 \end{gathered}[/tex]
C. 38
