Fill in the sentences below to tell about the change from 36 to 360

Which is f(5) for the function –2x2 + 2x - 3?

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).

How would you describe the difference between the graphs of f(x) = 2x2 and g(x) = -2x2?