Inequalities and graphs
Inequalities can be represented on a graph and to do that you only need to know two things:
Pick a point NOT on the line
If it satisfies the inequality SHADE IT
If it does not satisfy the inequality
DON'T SHADE IT
(so it must be the other side)
We are assuming that when we say “SHADE IT” that that is what the question has asked us to do.
In order to draw an inequality graph:
You must understand our section on formula for a straight line.
1. Always make `y` the subject of the formula
2. Formula of a straight line is `y=mx+c`
3. Plot `x` and `y` guessing values of `x`