Mammoth Memory

When you’re given coordinates

When you are given coordinates for two points on a straight line finding the gradient is logic based on what you already know.

Example

Given 10, 8 and 6, 6 find the gradient of the line.

First plot on a graph to help visualise.

Plot the coordinates on a graph

Gradient (m)=y(change in)x(change in)

Then draw the line between the points.

Draw the line between the points

Now work out the horizontal (x) and vertical (y)

 

Now find the rise and run of the new line and work the gradient out from there 

Gradient (m)=+2+4=12 

Gradient of this line (m)=12=0.5