Final answer:
Data not represented as a linear function can be represented by various types of functions including polynomial, exponential, quadratic, and trigonometric functions.
Step-by-step explanation:
When data is not represented as a linear function, it can be represented by various types of functions. In addition to a linear function, data can be represented by a polynomial function, an exponential function, a quadratic function, or a trigonometric function.
A polynomial function is a function where the highest power of the variable is a non-negative integer. An example of a polynomial function is f(x) = 2x^3 + 3x^2 - 4x + 1.
An exponential function is a function where the variable is an exponent. An example of an exponential function is f(x) = 2^x.
A quadratic function is a function where the highest power of the variable is 2. An example of a quadratic function is f(x) = x^2 + 2x + 1.
A trigonometric function is a function that relates an angle of a right triangle to the ratios of the side lengths. Examples of trigonometric functions are sine, cosine, and tangent.