For the Following Regression Equation $\tilde { y } = 100 - 12 x _ { 1 } + 5 x _ { 2 } - 4 x _ { 1 } x _ { 2 }$

Multiple Choice

For the following regression equation $\tilde { y } = 100 - 12 x _ { 1 } + 5 x _ { 2 } - 4 x _ { 1 } x _ { 2 }$ ,a unit increase in x₁,while holding x₂ constant at a value of 2,decreases the value of y on average by:

A) 92
B) 85
C) 20
D) an amount that depends on the value of x₁.