Linear Graphs Revision Videos

There's a very fine line between success and failure and it's equation is y=mx+c. We've found videos explaining how to begin working with Linear Graphs right up to recognising perpendicular lines from their graphs and their equations.

Linear Graphs are graphs of straight lines. They do not have any x² values as that would make the line a curve. The graphs are defined by how steep they are (the gradient) and where they cross the Y axis (the Y intercept). These two qualities can be read from the equation of the line.

Getting your equation into the form y=mx+c

This video focuses on making 'y' the subject of the equation so that a line can be easily graphed using it's gradient (slope) and y-intercept. This is an important step which is not covered in the other videos below.

Parallel and Perpendicular

This video covers producing a table of values from the equation of a line and plotting points on the graph from that table. It discusses how to read the gradient of a line from a graph and the relevance of the Y-intercept. The video goes on to plot parallel and perpendicular lines and how to recognise them from their equations.

Complete topic review in a live classroom

This video is a thorough investigation of the topic of straight line graphs. Beginning with recognising gradients and ending with some difficult questions finding the equation of and drawing the graph of a line when given one point and a parallel or perpendicular line, this video shows an expert teacher in a live classroom environment.