The plot function creates a 2D plot with the slope-intercept form of the equation, and the (x,-10,10) part specifies the range of the graph, between the x values of -10 and 10. This will also be ...

In order to work with gradients and straight lines successfully, a good understanding of coordinates and linear graphs is needed. The gradient close gradient A measure of the slope of a line. The ...

The bottom part is a graph of the equation, which, as you can see, is exactly the same. To be fair, this equation cheats a little bit. You may notice that the y-axis of that graph begins at ‘k’.