Slope: -1/2 -passing through (-2,4)

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.