Therefore it cannot be written in slope-intercept form. Use the two points to calculate the slope. Where m m is the slope and c c is the y-intercept.
Point Slope Form However if you are comfortable using the point slope form of a line then skip to the second part of this page because writing the equation from 2 points is easier with point slope form.
YmaroonC mxgreenE b y mxb. For example the equation for the line with points on 3 8 and 7 12 is y 1x5 or simply y x5. Slope of a horizontal line. Once you know the slope of the line plug it in for m in y mx b.