Question

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

Answer 1

• Rate of change formula:
  `(y_2-y_1)/(x_2-x_1)`

65.

`(540-135)/(12-3)=(405)/(9)=45`

The rate of change is 45 miles per hour.

66.

`(161-173)/(7-1)=(-12)/(6)=-2`

The rate of change is -2 pounds per week.