Put the equation in slope-intercept form: y = mx + b
Identify the coefficient of x
The coefficient of x is the slope
If the equation is in standard form Ax + By = C, solve for y first
Rewrite the equation as y = mx + b
If the equation is in point-slope form y – y1 = m(x – x1), the slope is m
If the equation is in two-point form, use the slope formula m = (y2 – y1) / (x2 – x1)
If the equation is a vertical line x = a, the slope is undefined
If the equation is a horizontal line y = b, the slope is 0