the functions f(x) and g(x) are described below: f(x) = 7x + 9 g(x) = 7x − 4 the graph of g(x) is obtained by shifting down the graph of f(x) by units. numerical answers expected! answer for blank 1

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).