Consider the integral L (6 - V16- dx a) Draw the graph of the function and shade the region defined by the definite integral. b) Use geometry to evaluate the integral. c) Include a brief explanation that connects the geometry to the definite integral (explain how you did part b). d) Briefly explain, in your own words, why we must use geometry to evaluate the definite integral. Your work and explanations should show your understanding of . definite integrals and what they represent . what we are able to (or are unable to) integrate analytically