The natural log button is among the first group of buttons that show, but if you want to graph ‘e’ functions, you will get access to it by pressing the ‘2 nd ’ button, which opens the ...

Revise how to recognise and determine the equation of a quadratic function from its graph. BBC Bitesize Scotland revision for SQA National 5 Maths.

The roots of the equation y = x 2 x 4 are the x-coordinates where the graph crosses the x-axis, which can be read from the graph: x = 1.6 and x = 2.6 (1 dp).