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Areas and Definite Integrals. Objectives. Students will be able to Calculate a definite integral. Calculate the area between a curve and the x -axis over a given interval. Use definite integrals to application problems. Fundamental Theorem of Calculus.
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Objectives Students will be able to • Calculate a definite integral. • Calculate the area between a curve and the x-axis over a given interval. • Use definite integrals to application problems.
Fundamental Theorem of Calculus For a continuous function f(x) over an interval [a, b], let F be any antiderivative of f. Then
Example 1 Evaluate the definite integral
Example 2 Evaluate the definite integral
Example 3 Evaluate the definite integral
Example 4 Evaluate the definite integral
Example 5 Evaluate the definite integral
Example 6 Find the area between and the x-axis from x = 2 to x = 4.
Example 7 The graph of f(x) below consists of two straight line segments and two quarter circles. Find the value of
Example 8 An oil tanker is leaking oil at the rate of (in barrels per hour), where t is the time (in hours) after the tanker hits a hidden rock (when t = 0). a. Find the total number of barrels that the ship will leak on the first day. b. Find the total number of barrels that the ship will leak on the second day.