Answer:
(1,-4)
(-9,-12)
(6,0)
Step-by-step explanation:
substitute each other pair into equation
4x-5y=24
(1,-4)
4(1)-5(-4)=24
4+20=24 ... true
(4,8)
4(4)-5(8)=24
16-40=24
-24=24 ... not true
(-9,-12)
4(-9)-5(-12)=24
-36+60=24
24=24... true
(6,0)
4(6)-5(0)=24
24= 24... true
