Answer:
(-9.-8): Quadrant III
(1,0): x-axis
(7.5,2): Quadrant I
Explanation:
Quadrant I: (+,+)
Quadrant II: (-,+)
Quadrant III: (-,-)
Quadrant IV: (+,-)
The points above follow this pattern. Since (-9,-8) is (-,-), it is quadrant III. (1,0) is on the x-axis since y is 0. (7.5,2) is (+,+) so it is in quadrant I.