2. Which relationship is a function?
A.
ху
9 -6
9-8
4
2
-32
B. {(-10, 8), (5, 2), (-1, 5), (-1, -9)}
C. {(3, 4), (10, -7), (-7, 1), (3, 10)}
D. {(-6, 3), (4, 4), (-7, 10), (0, 7)}

The answer is D.
it is the only choice that does not have repeating x-values

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to