Part 2: Each ordered pair is from an inverse variation. Find the constant of variation, and then find y when x 10
7. (12,3)
8. (0.9.5)
9. (5,8)
10. (8, 24)

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field