Question

Kim recorded the number of heartbeats of horses for different time intervals, on a scatter plot. She drew a line of best fit on the scatter plot, as shown below.

Answer 1

What is the question?

Answer 2

Oh! sorry it's Which statement best describes the meaning of the slope as a rate of change for this line of best fit?

It represents the increase in a horse’s heartbeat with time.

It represents the time in which a horse completes a heartbeat cycle.

It represents the change in heartbeat rate for horses per unit change in time.

It represents the average heartbeat rate of horses, in beats per minute.