Watch this video to learn about the equation of a straight line. Since we are given 2 points that already lie on the line, using the formula as before, we need to calculate the gradient first.

Margaret Wertheim gave a talk for the Australian Mathematical Sciences Institute at their 2016 annual Summer School. We have built a world of largely straight lines – the houses we live in, the ...

The equation of a straight line can be worked out using coordinates and the gradient, and vice versa. Practice determining the equation of a straight line ahead of your National 5 Maths exam with this ...