1) Seven workers are hired to weed a field by hand. Each is given a plot which is 9×10 feet in size. What is the total area of the field?

Which statement is true about the local minimum of the graphed function? over the interval[-4,-2], the local minimum is 0. over the interval [-2,-1] , the local minimum is 25. over the interval [-1,4], the local minimum is 0. over the interval [4,7], the local minimum is -7