algebra question

Question

If the point (x, y) is in Quadrant IV, which of the following must be true?

x < 0 and y > 0

x > 0 and y < 0

x < 0 and y < 0

x > 0 and y > 0

Answer 1

X>0 and y<0

Take a point for example, (4,-5) in the 4th quadrant to check the conditions.