Question

Lisa creates a scatter plot of the number of minutes she runs on the treadmill and the calories she burns. About how many more calories does she burn for every additional 5 minutes on the treadmill?

A.10

B.25

C.50

D.100

Answer 1

50

Explanation:

100 - 50 = 50

Answer 2

The scatter plot shows the points and the line of best fit for the points. From the given points we can see that for every 5 minutes on the treadmill Lisa burns 50 calories on average.

We can confirm this by finding the slope of the best fit line. Two points on the line are: (5,50) and (10,100)

Slope of the line is:


`(100-50)/(10-5)=10`

Slope indicates how much calories are burned for every additional minute on the treadmill. So we can say, for every additional minute, Lisa burns 10 calories. So for every additional 5 minutes, Lisa will burn 50 calories. This can also be seen from the graph of the line.

Therefore the correct answer is option C