Functions relate a set of inputs to a set of outputs such that each input is related to exactly one output. Graphs can be used to represent these relationships pictorially.
Linear and quadratic functions make lines and a parabola, respectively, when graphed and are some of the simplest functional forms.
Trigonometric functions are functions of an angle, relating the angles of a triangle to the lengths of the sides of a triangle.
An inverse function is a function that undoes another function: For a function
Both exponential and logarithmic functions are widely used in scientific and engineering applications.
For numerical calculations and graphing, scientific calculators and personal computers are commonly used in classes and laboratories.