Question

Each day, Hugo runs some laps around the school track and then does a cool-down routine.

What does the y-intercept of a trend line for this data represent?
a) total time spent exercising
b) average time to run one lap
c) average time spent on the cool-down routine
d) average number of laps run

Answer 1

The y-intercept of a trend line for this data represents the average time spent on the cool-down routine.

Step-by-step explanation:

The y-intercept of a trend line for this data represents the average time spent on the cool-down routine. The y-intercept is the value at which the trend line crosses the y-axis (vertical axis), which in this case represents the time spent on the cool-down routine. The slope of the trend line, on the other hand, represents the relationship between the laps run and the time taken to run them.