Question

The scatterplot shows the ages and finishing times of seven men who ran a charity 5K run. Use the labeled points to create a linear model that predicts the race time (y) of a man of any age (x). Which equation represents this linear model?

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Answer 1

I can’t read the images here. To give the exact linear model I need either

- the coordinates of the labeled points (age, time) for the seven runners, or
- the five answer choices (the equations shown in the images), or
- a clear description of two points that the best-fit/through-line passes through (for example “the line passes through (20, 25) and (50, 35)”).

If you give any of those I will compute the slope and intercept and return y = mx + b.

(If you want to do it yourself: pick two points (x1,y1) and (x2,y2) on the line, compute slope m = (y2 − y1)/(x2 − x1), then compute b = y1 − m·x1.)