A linear regression equation has b = 3 and a = - 6. what is the predicted value of y for x = 4?

Question

Marshmallow

Mathematics

27 June, 12:40

A linear regression equation has b = 3 and a = - 6. what is the predicted value of y for x = 4?

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Answers (1)

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Bolton · Answer 1

So we want to know what is the predicted value for y in the linear regression equation if x=4, a=-6 and b=3. So the linear regression equation generally is y=ax+b. In our case its y=-ax+b. When we input the numbers: y=-6*4+3, so the predicted value for y=-24+3=-21. So the correct answer is y=-21.