Use the slope formula: (m = frac{y_2 – y_1}{x_2 – x_1})
Identify the two points as ((x_1, y_1)) and ((x_2, y_2))
Subtract the y-values
Subtract the x-values
Divide the change in y by the change in x
Simplify the fraction if possible
If (x_2 – x_1 = 0), the slope is undefined