Question

I need help with 65 and66 help please I’m struggling

Answer 1

• Rate of change formula: $\frac{y_2-y_1}{x_2-x_1}$

65.

$\frac{540-135}{12-3}=\frac{405}{9}=45$

The rate of change is 45 miles per hour.

66.

$\frac{161-173}{7-1}=\frac{-12}{6}=-2$

The rate of change is -2 pounds per week.