Labster Logo

Calculating the slope of a graph

The slope (m) of a linear graph can be calculated from two points on the graph.

m = Δy / Δx'm' is equal to delta 'y' divided by delta 'x'

as shown in the following chart:

The graph with x and y numerical axis, and increasing linear line coming from the origin. Two points on the line are marked - first point at x equal 2 and y equal 1, and second point at x equal 6 and y equal 3. Two points, together with the third point at x equal 2 and y equal 3, create a rectangular triangle.One arm of the triangle, parallel to x axis, is called delta x, and the other arm parallel to y axis is called delta y.

If you have an exponential graph you can use a logarithmic scale to transform it into a linear graph.