What are the factors of -72 that add up to -15

Fiona has to plot a histogram of the given data

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.

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