Question

Please help!

Determine whether the relationship between the number of heart beats and the time shown in the graph is proportional. Explain your reasoning.

Answer 1

Yes proportional because the slope is constant

Answer 2

This is proportional

Explanation:

Your slope is 2 each time. To find slop you do rise/run. go to a dot and go up 2 and over 1. Simplify that and you get a slope of 2. Keep doing that for each point then you can determine if it is proportional or not. In this case it is. Hope this helps :)