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.

Straight line graph in the first quadrant shows ‘Time (in minutes)’ on the x axis and ‘Number of heartbeats’ on the y axis. The graph passes through the points (1, 44), (2, 88), (3, 132), (4, 176).

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 cy

Answer 1

@texaschic101

Answer 2

@bahrom7893

Answer 3

I am going with the first one....it represents the increase in a horse's heartbeat with time.

Answer 4

thats what i had

Answer 5

you might want to get a second opinion, because I am not very good with these.

Answer 6

but as you can see....the heartbeats increase as time goes by.