A regression equation is found that predicts the increased cost of a home owner's electricity bill given the number of holiday lights they put on the outside of their house. The equation is dollars = $2.5 + 0.02$ (light). If a house has 400 lights and a $\$ 15$ increase in their electricity cost, find their residual.
A) $- \$ 15$
B) $- \$ 5$
C) $\$ 15$
D) $\$ 20$
E) $\$ 5$

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The Answer of A regression equation is found that predicts the increased cost of a home owner's electricity bill given the number of holiday lights they put on the outside of their house. The equation is dollars = $2.5 + 0.02$ (light). If a house has 400 lights and a $\$ 15$ increase in their electricity cost, find their residual.
A) $- \$ 15$
B) $- \$ 5$
C) $\$ 15$
D) $\$ 20$
E) $\$ 5$

A Regression Equation Is Found That Predicts the Increased Cost 2.5+0.022.5 + 0.022.5+0.02

A Regression Equation Is Found That Predicts the Increased Cost $2.5 + 0.02$