How to Graph a Function in Excel. A mathematical function is a formula that takes an input, x, applies a set of calculations to it, and produces an output called y. By calculating a function at a ...

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.

You can put away your Texas Instruments graphing calculators, kids. Microsoft’s bringing that capability to the Calculator app within Windows 10, as part of a new Insider build.