Find an expression for the quadratic function who goes through the points (-2, 2), (0, 1) and (1, -2.5). 8. A rancher intends to work off a rectangular plot of land that will have an area of 1000m. The plot will be fenced and divided into two equal portions by an additional fence parallel to two sides (see diagram). (a) Find the total length of fence used as a function of y. (b) What is the domain of the function found in part (a)? fence y Y 1/2