Carinas cars is having a 25 % off sale. write an expression that can be used to find the sale price of any car on the lot:

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585