How do you graph linear functions?

1 Answer
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.

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I hope this helped.