Using function machines to solve equations Function machines can be used to solve equations by reversing, or finding the inverse of the steps.

Revise how to identify the y-intercept, turning point and axis of symmetry of a quadratic function. BBC Bitesize Scotland revision for SQA National 5 Maths.

We suggest reducing the design matrix to row echelon form as a means of finding the structure of all estimable functions. We illustrate the procedure with two examples.

One of the simplest prediction methods is linear regression, in which we attempt to find a 'best line' through the data points.