Question

In the fall, Mr. Brennan's science class conducted an experiment using pumpkins. Each student recorded the weight of a pumpkin in pounds, x, and the number of seeds in it, y. This is the equation for the line of best fit for the data:
y=15x+2
According to this equation, what does the number 15 tell you?

Answer 1

15 is the slope: it means the model predicts 15 more seeds for each additional pound of pumpkin (i.e., an average increase of 15 seeds per pound).