50+50, please help me need to pass pree schol

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? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Ineed ! i can’t figure out this graph