how to calculate slope of a line - Slope of a line between two points

Sangeetha Pulapaka (last edited 1 year ago) (Expert, Educator @Qalaxia)

STEP 1: What is the slope of a line

STEP 2: Recall the formula of the slope

m = \frac{y_{2}-y_{1}}{x_{2} - x_{1}}

STEP 3: Substitute the given set of points in the slope formula

Let x_{1} = 19 ; x_{2} = -16 ; y_{1} = -7 ; y_{2} = -15

m = \frac{-15 - (-7)}{-16-19}

m = \frac{-8}{-25} = \frac{8}{25}