AP Calculus
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Special Focus: The Fundamental<br />
Theorem of <strong>Calculus</strong><br />
Extending These Ideas<br />
If time permits, this activity can easily be extended by introducing simple linear functions<br />
as the integrands. Consider f ( x) = x, 2x, x + 2,<br />
2x<br />
+ 3, or similar linear functions with<br />
negative slopes. Students can evaluate f x x<br />
0<br />
( ) = ∫ f ( t)<br />
dt and f x x<br />
f t dt<br />
0<br />
2<br />
( ) = ∫ ( ) for<br />
2<br />
specific values of x by computing the areas of triangles and trapezoids.<br />
Answers<br />
1. 0<br />
2. 1.5<br />
3. 3<br />
4.<br />
x f0 ( x ) = ∫ 1.<br />
5 dt<br />
0<br />
x<br />
0 0<br />
1 1.5<br />
2 3<br />
3 4.5<br />
5.<br />
22<br />
<strong>AP</strong>® <strong>Calculus</strong>: 2006–2007 Workshop Materials