I don't know where you got those answers, but the actual equation that represents those points is: y = -1/2x + 11. None of those listed above are correct.
6x / x²
the reciprocal of a number n is 
the reciprocal of
is 
The product of a number and it's reciprocal = 1
Answer:
(90,60)
Step-by-step explanation:
if you look closely through the linear graph, the line crosses through (90,60) and not the other given pairs.
- proportional relationships are plots that also match in the same graphing format (keep in mind when you have trouble next time)
A2+b2=c2 and get your answer