National 5; Determining the equation of a straight line Function notation. The equation of a straight line can be worked out using coordinates and the gradient, and vice versa.

In the late 19th century, Karl Weierstrass invented a fractal-like function that was decried as nothing less than a “deplorable evil.” In time, it would transform the foundations of mathematics.

Exponential growth is a pattern of data that shows greater increases with passing time, creating the curve of an exponential function. The formula for exponential growth is V = S x (1+R) T, where ...