Question

20 POINTSSSSSSSSSSSSSSSSSSSSS do these pairs of values (x and y) represent two quantities that are proportional x 1, 4,10,18 y 3, 8, 15, 27, A. no, because mot all pairs represent the same ratio. B, yes, because all of the pairs represent the same ratio. C. yes, because as x increases y increases. D. no, because not all of the x-values can be divided by 2 evenly

Answer 1

Answer:Answer: B) No, because not all of the pairs represent the same ratio

For each row, divide y over x

Row 1: y/x = 5/3 = 1.67 approximately

Row 2: y/x = 7.4 = 1.75

Row 3: y/x = 10/6 = 1.67 approximately

Row 4: y/x = 15/9 = 1.67 approximately

We see that row 2 has a ratio different from the others. If we were able to ignore this row, then the answer would be "yes x and y are proportional". However, we cannot ignore this row so that's why the answer is choice B.

THANKS

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