Question

Rihanna‘s yacht holds 70 passengers. Each hour he stops at the Marnie to let some passengers off and on. The scatterplot shows how many passengers are on board during each hour of boating. Usually given line of best fit the approximate the rate of change relative to the scatterplot. Pick a point along the line and use the coordinates X, Y to plug into the X equals MX plus be equation in sulfur M. Your rate of change! What is the passengers per hour?

Answer 1

5

1) Examining the scatterplot we can pick two points along the best line of fit. (7,60) and (1,30)

2) So now, we can plug these points into the slope formula:

`m=(30-60)/(1-7)=(-30)/(-6)=5`

3) Since this is a line of best fit, we can tell that the rate of change relative is (approximately) 5.