What quadrant are the following points located in?

I---II---III---IV---
--------------------
(3.5, -1) |
(7,2) |
(-4, -0.5) |
(-5,3) |

Quadrant I: (7,2)

Quadrant III: (-4, -0.5)
Quadrant IV: (-5,3)
Quadrant I and IV: (3.5, -1)