This is another video in the Year 9 Mathematics series relating to Linear Relations. I say time and again that the videos in this section of the course seem to be very repetitive. We have learned, in previous videos, about the gradient and how we can use it to plot straight lines. How we can use it as a rate of change. Now we are going to build on the previous video and look at how we can find the equation of a straight line from a graph (and from two coordinates). There are a number of worked examples and the theory is explained in an easy to understand way.