(a) Draw and shade in the rectangles needed to represent a left sum approximation of

the distance traveled on the interval [0,30] with n = 6 rectangles.

(b) Use the graph to estimate the distance traveled on the interval [0,30] with a left

Riemann sum with n = 6 rectangles. Note: 1 second is equal to 1/3600 hours.

(c) Does this give an overestimate or an underestimate of the distance traveled?

(d) Interpret the Riemann Sum in the context of the situation. Include units in your

answer.