graphing inequalities
TRANSCRIPT
If you have x = number, you are graphing a vertical line where all the x values on the line are equal to that number.
This is the
graph of x=2
Then if you have x ≥ number or x ≤ number, you are graphing the line first and then shading where the inequality states.
This is the
graph of x ≥ 2
(Shaded the x’s greater than 2)
If you have y = number, you are graphing a horizontal line where all the y values on the line are equal to that number.
This is the
graph of y=0
Then if you have y ≥ number or y ≤ number, you are graphing the line first and then shading where the inequality states.
This is the
graph of y ≤ 0
(Shaded the y’s less than 0)
Remember ≤ and ≥ mean you use a solid line when graphing.
But > and < mean you use a dotted line when graphing.