Lessons

Recognize the characteristics of a linear function
In this lesson you will learn how to recognize a linear function by examining the four representations of a function.
Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the function A = s^2 giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4) and (3,9), which are not on a straight line.
In this lesson you will learn how to recognize a linear function by examining the four representations of a function.