Find an equation of the parabola with vertex (2, -1) and directrix y=-7.

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Find the slope of the line passing through a pair of points

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?