# What Are Linear Functions?

Linear functions are functions that have a value x as the input variable. Simply put, it is any function that can be written in the form y=mx + c where m and c are real constants, and x and y is any real number that solves the equation. Functions such as these yield graphs that plot straight lines, thus the name linear.
linear function
NOUN [MATHEMATICS]
Source: Dictionary.com
In mathematics, linear function is the map between two vector spaces where scalar multiplication and vector addition are preserved. Also known as a linear equation, it is an equation in which the independent variable has a value of no more than one. It plots a straight line when drawn on a graph.
Linear functions are defined as mathematical expressions that have x as the input variable. The input variable always has an exponent of one only. These equations normally yield straight lines when graphed.
Q&A Related to "What Are Linear Functions"
 A linear function is one that takes the inputs you give it and results in an output that describes a straight line with no exceptions. They are usually placed in slope-intercept form http://answers.ask.com/Science/Mathematics/what_is...
 1. Write down the power function. Identify the power variable. For the function y = x^5, the power is 5. Also identify any scalers in the function. For example, if the function is http://www.ehow.com/how_8744063_linearize-power-fu...
 The zeros, or roots, of a linear function is the point at which the line touches the x-axis. Since a linear function is a straight line, it has a maximum of one root (zero) The zero http://wiki.answers.com/Q/What_are_the_zeros_of_a_...
 ( ′lin·ē·ər ′fəŋk·shən·əl ) (mathematics) A linear transformation from a vector space to its scalar field. http://www.answers.com/topic/linear-functional
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