This table defines a function.
7 10 13 16
21303948
Which table represents the inverse of the function defined above?
30
10
-39
13
-48
16
B.
X
21
7
303948
0 13 16
NA
10
-13
-16
39
48
x
10
w
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The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

The answer is: y would equal 3 because if you simplify the equation then it would be y= 3x+9 and if you divide 3x and 9 by 3 it would equal 3. y= 3