# How do you graph -x>=20 on the coordinate plane?

Jun 30, 2018

See a solution process below:

#### Explanation:

First solve for $x$ by multiplying each side of the inequality by $\textcolor{b l u e}{- 1}$. However, because we are multiplying or dividing an inequality by a negative number we need to reverse the inequality operator:

$\textcolor{b l u e}{- 1} \times - x \textcolor{red}{\le} \textcolor{b l u e}{- 1} \times 20$

$x \textcolor{red}{\le} - 20$

graph{x + 20 <= 0 [-100, 100, -50, 50]}

The boundary line is a solid line because the inequality operator contains an or equal to clause