Graphs of two or more straight lines can be used to solve simultaneous linear equations. The graph of a straight line can be described using an equation close equationA mathematical statement ...

First, let's suppose a table of difference points, based on sampling a sinusoid at /2. This is shown in Table 2. The column under f (x) is actually the data collected based on the sampling formula: (3 ...

Revise how to plot a linear equation graph. Learn how to read x and y coordinates from a graph in this BBC Bitesize maths KS3 guide.