The equation becomes 5 23 b then you solve for b. Y mx mx mx b. Substitute the known values into the slope formula and simplify if necessary.
Similarly the form ymxa means slope m and y-intercept a.
Subtract mx from each side of the equation to solve for b. Y M X B Swap sides so that all variable terms are on the left hand side. Y mx mx mx b. The y-intercept is where the line will cross the y-axis so count up or down on the y-axis the number of units indicated by the b value.