Respuesta :

Polyblock

Answer:

(3, -1) Yes

(-7,-5) Yes

(-9,4) No

(4,2) No

Step-by-step explanation:

Plug them in

(3, -1)

2(3) - 5(-1)

6 + 5 = 11

(-7,-5)

2(-7) - 5(-5)

-14 + 25 = 11

(-9,4)

2(-9) - 5(4)

-18 - 20 = -38

(4,2)

2(4) - 5(2)

8 - 10 = -2