What is 0.64 divided by 4 in standard algorithm

With finding limits of multi variable !

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

If the figures below are similar give the scale factor of figure a to figure b