3 and 4 need help also

Proving the congruent supplements theorem

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

Whuch statements about the diagram are true? select all that apply.