In a regression analysis, if the slope is 1.25 and the y-intercept is -2.23, which of the following should be the least square regression equation?

A. y = -2.23x + 1.25

B. y = 1.25x - 2.23

C. y = 2.23x - 1.25

D. y = -1.25x + 2.23

In the equation y = 0.35x +2.5, which of the following is true?

A. As x increases by 1, y will increase by 2.5

B. As x increases by 1, y will increase by 0.35

C. As x increases by 1, y will decrease by 2.5

D. As x increases by 1, y will decrease by 0.35