Answer:
Y-x=0
i got it right on the lesson
the last option is the answer
Step-by-step explanation:
test with point (1,1)
-x-y = 0
-1-1 ≠ 0
-2 ≠ 0
test with point (5,5)
-5-5 ≠ 0
-10 ≠ 0
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