In ax^2 + bx + c, if ac is positive and b is negative, what do you know about the factors of ac?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

A50% increase followed by 33 1/2% decrease

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches, and a length of 3.2 inches?