How do you graph linear functions?

1 Answer
Nico Ekkart
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(x) = 5x+3
First you choose two x value. I will choose 0 and 1. Then you enter them in the function one by one:
f(0) = 5*0+3 = 3
=> There is a point (0,3), that's part of the function.

f(1) = 5*1+3 = 8
=> There is a point (1,8), 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.

enter image source here

I hope this helped.

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