8- 2- Suppose the function shown here is the velocity function, (t), for a moving object, with the vertical axis having units of miles/hour and the horizontal axis having units of hours. Consider the time interval 0 S t $ 4. Find a Riemann Sum estimate of the object's displacement, in miles, during the time interval 0 S t $ 4. "T For this Riemann Sum, use: . the Left Sum . n=4 Answer with a whole number only (no units).Example: we want to find an n=3 Riemann Sum to estimate the net signed area trapped by g (x) on the interval -6