Gradient of a Straight Line

In this tutorial you are given the definition of the gradient and I run through examples of finding various gradients of straight lines when given the coordinates of points.

Tutorial on finding the gradient of a straight line

Equation of a Straight Line

In the first tutorial I introduce you to the equation y = mx + c and the meaning of m and c.

Tutorial on y = mx + c

You will often find that you need to find the equation of a line given a point on the line and the gradient. In this next tutorial I introduce you to the equation

and run through two common examples on this.

Tutorial on the equation of a line given a point and gradient

 

In this next example I compare the two methods of finding the equation of a line. You may like to try this as part of your maths revision before looking at the video.

(1)

Worked solution to (1)

 

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