Question

Mario found this relationship between the quantities in the table. x12345y$6.50$13.00$19.50$26.00$32.50Multiply x by 65 to get y.Which error did Mario make?Mario should have added $6.50 to the x-values to get the y-values.Mario should have multiplied the x-values by 2 to get the y-valuesMario should have multiplied the x-values by $6.50 to get the y-valuesMario should have multiplied the x-values by 5 to get the y-values.

Answer 1

We can see that the y values have a common difference:

13 - 6.5 = 6.5

19.5 - 13 = 6.5

26 - 19.5 = 6.5

32.5 - 26 = 6.5

1 x 6.5 = 6.5

2 x 6.5 = 13

3 x 6.5 = 19.5

4 x 6.5 = 26

5 x 6.5 = 32.5

Mario should have multiplied the x values by $6.5 to get the y values.