y = -4x + 5 The gradient is -4 and the graph will cross the y -axis at 5. We can also use this to determine the equation of a straight-line graph.

Working with the general equation of a straight line, 𝑦 = 𝑚𝑥 + 𝑐, use the interactive activity to see what a graph looks like when plotted. Select values for 𝑚, the gradient, and ...

The simplest form of regression in Python is, well, simple linear regression. With simple linear regression, you're trying to ...