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 ...

Learn how to read x and y coordinates from a graph in this BBC Bitesize maths KS3 guide. ... To draw the line 𝒚 = 𝒙, plot points with coordinates where 𝒙 and 𝒚 are equal.