Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store.

Which equation can be used to determine the approximate shoe size, S, for a foot length of x inches?

I found the missing dа ta:

table:

foot length (in) Shoe size (S)

8 6

8.5 7

9 8

9.5 9

10 10

Choices:

S = x - 2

S = 2x - 10

S = x + 6

S = 2x + 4

Among the choices, the correct equation is S = 2x - 10

S = 2 (8) - 10 = 16 - 10 = 6

S = 2 (8.5) - 10 = 17 - 10 = 7

S = 2 (9) - 10 = 18 - 10 = 8

S = 2 (9.5) - 10 = 19 - 10 = 9

S = 2 (10) - 10 = 20 - 10 = 10