The point-slope formula uses the slope and the coordinates of a point along the line to find the y-intercept. The slope formula uses two points x1 y1 and x2 y2 to calculate the change in y over the change in x. Understand what slope is and how to calculate slope when given a graph.
The Slope of this line 4 2 2.
Subtract the values in parentheses to get 2-5. Slope m change in y change in x y y 1 x x 1. Identify the coordinates x₁y₁andx₂y₂. In mathematical language the slope m of the line is The concept of slope applies directly to grades or gradients in geography and civil engineering.