How do you graph #f(x) = |2x + 1|#?

1 Answer
Júlio B.
Jun 13, 2017

This is how you graph it. Hope you can understand.

Explanation:

The graph of that equation is a mirrored linear equation, that mirrors when the part inside the module function equals 0:

#(2x+1) = 0#
#2x = -1#
#x = -1/2#

That being said, its important to note that a modular function does not have a graph when #y < 0#, as we can see on the graph below:

graph{|2x+1| [-10, 10, -5, 5]}

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