# How do you graph linear functions?

Dec 19, 2014

The easiest way (In my opinion) to graph a linear function is to enter two points, and connect them.

For example, the function:
$f \left(x\right) = 5 x + 3$
First you choose two $x$ value. I will choose $0$ and $1$. Then you enter them in the function one by one:
$f \left(0\right) = 5 \cdot 0 + 3 = 3$
=> There is a point $\left(0 , 3\right)$, that's part of the function.

$f \left(1\right) = 5 \cdot 1 + 3 = 8$
=> There is a point $\left(1 , 8\right)$, that's part of the function.

Since any line can be represented by two points, you can graph a linear function (line) by connecting the two points.

I hope this helped.