Which expression could you use to find the average rate of change for this function over the given interval. f(x) = 2x2 ? x + 6; [? 2, 3] a) f(2) ? f(3) 3 ? (? 2) b) f(? 2) ? f(3) 2 ? 3 c) f(3) ? f(? 2) 3 ? (? 2) d) ? f(3) ? f(? 2) 3 ? (? 2)

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