I don’t really understand this question help would be really appreciated

Select the quadratic that has root x = 8 and x = -5

Is the point (0, 8) on the x-axis or y-axis? how do you know?

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