Question

Sally's huge dog weighed 175 pounds in 2018 and then weighed 145 pounds in 2020. What was the rate of change in weight?

pounds per year?

Answer 1

Answer: -15 pounds per year

Explanation:

We can first list out all the information like Year, Weight

so (2018, 175) and (2020,145)

It asks to find the slope, so we just use the slope formula

175-145/2018-2020 = 30/-2 which is -15

Answer 2

Answer: 15 lbs per year

Explanation:

Huge dog lost 30 lbs in a span of 2 years so divide to find rate of change which is 15lbs per year