linear function

Popular Terms
A mathematical equation in which no independent-variable is raised to a power greater than one. A simple linear function with only one independent variable (y = a + bx) traces a straight line when plotted on a graph. Also called linear equation.

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If you are looking at a graph and the lines are not straight then you are not looking at an example of a linear function.
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The student was having a hard time understanding linear function but his tutor helped him and he realized how easy and simple it was and that plotted on a graph came up a simple straight line.
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Okay class, today we will be studying linear function, I want you to pull up the graphing capability on your calculators. Please enter in y=1+2x , the resulting graph should be a straight line.
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