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?
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:
[tex] \frac{100-50}{10-5}=10 [/tex]
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.
