Answer:
C. (5,1)
Step-by-step explanation: You have to substitute the numbers in for x & y
A. (-4,1):
2x − y = 9
2(-4) - 1 = 9
-8 - 1
-9 = 9
NO
B. (-2,5):
2x − y = 9
2(-2) - 5 = 9
- 4 - 5 = 9
-9 = 9
NO
C. (5,1):
2x − y = 9
2(5) - 1 = 9
10 - 1 = 9
9 = 9
YES
D. (6,-3):
2x − y = 9
2(6) - - 3 = 9
12 - - 3 = 9
12 + 3 = 9
15 = 9
NO
Hope this helps you!!! :)