Slope-intercept form

If you put your equation in the form   y= mx + b     m=slope

or

slope = TAN(angle)

or

Slope =  rise/run     between two sets of points   

           =  (y2-y1) / (x2-x1)

\(m=\frac{y_2-y_1}{x_2-x_1}\)

.