Determining a Quadrant

[nycmathguy]

Section 4.4

For 19, we are in quadrant 1.

For 20, we are in quadrant 3.

For 21, we are in quadrant 4.

For 22, we are in quadrant 2.

You say?

 

[MathLover1]

21, we are in quadrant 2.
22, we are in quadrant 4

have this handy

 

[nycmathguy]

21, we are in quadrant 2.
22, we are in quadrant 4

have this handy

What a great diagram. Thank you.