Planes in Three-Dimensional Space Suppose that E(y)

is related to two predictor variables, 1 x and 2 x , by the equations given. Graph E(y) versus 1 x for values of x 50 2 , 1, and 2 on the same sheet of paper. Now graph E(y) versus 2 x for values of x 50 1 , 1, and 2 on another sheet of paper. What relationships do the three lines on the graphs have to one another? 

Transcribed Image Text:

1. E(y) 3+x-2x2