# How do you graph #9x-9y> -36# on the coordinate plane?

##### 1 Answer

The half plane above and to the left of

#### Explanation:

Simplify first, to give

If you like to use the

Depending on the requirement of the curriculum you're following, you might draw the line dotted to indicate strict inequality (the editor here does not allow this):

graph{x+4 [-9.125, 10.875, -2.24, 7.76]}

Next you need to decide which side of the line agrees with the inequality. I like to use

Is it true that

It is not true, therefore the half of the plane split by the critical line which contains the point

The correct half of the plane is the part above and to the left of the critical line.