Which of the following options results in a graph that shows exponential growth?

f(x) = 0.4(0.2)^x

f(x) = 4(0.98)^x

f(x) = 0.7(5)^x

f(x) = 5(4)^−x

52 cm radius = diameter = area = circumference = circumfer

Which is the focus of a parabola with equation y2=4x

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