D got cut off !! sorry

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Match each function with its rate of growth or decay