Answer :
Two key factors about the weight of Amy have been given as,
- Present weight of Amy is 87 pounds.
- After 6 weeks she weighs 99 pounds.
Since, expression for the average rate of change is given by,
Average rate of change = [tex]\frac{\text{Change in weight}}{\text{Duration or time}}[/tex]
By using this expression,
Average rate of change = [tex]\frac{\text{(Weight after 6 weeks-present weight)}}{Time}[/tex]
= [tex]\frac{99-87}{6}[/tex]
= [tex]\frac{12}{6}[/tex]
= [tex]2[/tex] pounds per week
Therefore, average rate of change in the weight of Amy will be 2 pounds per week.
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