Example 2, the prediction equation between y = selling price and x1 = house size and x2 = number of bedrooms

Description

QUESTION:

Example 2, the prediction equation between y = selling price and x₁ = house size and x₂ = number of bedrooms was ŷ = 60,102 + 63.0x₁ + 15,170x₂.

a. For a fixed number of bedrooms, how much is the house selling price predicted to increase for each square foot increase in house size? Why?

b. For a fixed house size of 2000 square feet, how does the predicted selling price change for two, three, and four bedrooms?

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