I need y’all help asap

Find the missing dimension! need asap! tiny square is a =3025 in ²

Using the rise/run counting method, the slope of the line is

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