Which equation is a non-linear function? o A. y = 2^2- 2x
B. y = 2.5x + 4
O C. Y = 2 + 2x2
o D. Y = 6.5 - 2x

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Select the quadratic that has root x = 8 and x = -5

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.