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

This is proportional

Step-by-step 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 :)

Divide 50 by 2 so 25 then divide that by 2 so 12.5 =x