Question: A regression line. A regression equation is y = 10 + 20x. (a) What is the slope of the regression line? (b) What is the

A regression line. A regression equation is y = 10 + 20x.

(a) What is the slope of the regression line?

(b) What is the intercept of the regression line?

(c) Find the predicted values of y for x = 10, for x = 20, and for x = 30.

(d) Plot the regression line for values of x between 0 and 50.

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