How do you graph the inequality $2 x + 2 y < 18$ $2x+2y<18$ ?

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Answer 1 · 2017-11-26T18:23:07

look below:

$2 x + 2 y < 18$ $2x+2y<18$
$\Rightarrow x + y < 9$ $=> x+y<9$
$\Rightarrow y < - x + 9$ $=> y<-x+9$

look at the graph below:
graph{y=-x+9 [-10, 10, -5, 5]}
all the (infinity) area below the line is the answer

How do you graph the inequality 2x+2y<182x+2y<182x+2y<18?