A linear equation is written with y equal to some value, and can be solved for x. A linear function is written in terms of y. For example:0 = 2x - 4 is a linear equation.***In this case, x = 2. We could solve this algebraically or by graphing its related function and locating the z-intercept.y = 2x - 4 is the related linear function.***If we were to graph this function, we would have a line with a y-intercept, b, at (0,-4) and a slope, m, of 2/1 or -2/-1. Once this line was drawn, we could see that it has an x-intercept at (2,0), and again, x = 2.