Consider the plot created from the residuals of a line of best fit for a set of data.
does the residual plot show that the line of best fit is appropriate for the data?
yes, the points have no pattern.
no, the points are evenly distributed about the x-axis.
no, the points are in a linear pattern.
yes, the points are in a curved pattern.

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).