The line equation for its slope and one point is: y - y1 = m(x - x1) m is the slope, x1, y1 are the point coordinates, so lets substitute: y - 4 = (1/2)(x - 2) y = <span>(1/2)x + 3</span>
It depends on how much sun the place receives, how much it is shaded. temperature in the area. Do you have solar panels, electric heat, gas? All these factors determine utility cost.
