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6.1 part 2 Area Between two Curves Blank.notebook 1 March 31, 2017 Area between Relations/Functions using Horizontal Rectangles Due to the properties of functions (Vertical Line Test), Vertical rectangles can be used the majority of the time to find area between two functions. With relations however, it is often easier to use "horizontal rectangles" to determine area between two curves the formula can be amended in following manner. Vertical Rectangles Horizontal Rectangles 6.1 Area Between Two Curves Part 2 Example 1: Find the area of the region bounded by the curves and . 4 3 2 1 0 1 2 3 4 4 3 2 1 1 2 3 4 x y Method 1: Vertical Rectangles

6.1 part 2 Area Between two Curves Blank.notebook · 6.1 part 2 Area Between two Curves Blank.notebook 1 March 31, 2017 Area between Relations/Functions using Horizontal Rectangles

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Page 1: 6.1 part 2 Area Between two Curves Blank.notebook · 6.1 part 2 Area Between two Curves Blank.notebook 1 March 31, 2017 Area between Relations/Functions using Horizontal Rectangles

6.1 part 2 Area Between two Curves  Blank.notebook

1

March 31, 2017

Area between Relations/Functions using Horizontal Rectangles

Due to the properties of functions (Vertical Line Test), Vertical rectangles can be used the majority of the time to find area between two functions.  With relations however, it is often easier to use "horizontal rectangles" to determine area between two curves the formula can be amended in following manner.

Vertical Rectangles

Horizontal Rectangles

6.1 Area Between Two Curves Part 2

Example 1: Find the area of the region bounded by the curves                                               and                  .

­4 ­3 ­2 ­1 0 1 2 3 4

­4

­3

­2

­1

1

2

3

4

x

yMethod 1: Vertical Rectangles

Page 2: 6.1 part 2 Area Between two Curves Blank.notebook · 6.1 part 2 Area Between two Curves Blank.notebook 1 March 31, 2017 Area between Relations/Functions using Horizontal Rectangles

6.1 part 2 Area Between two Curves  Blank.notebook

2

March 31, 2017

Example 2: Find the area of the region bounded by the curves                                               and                  .

­4 ­3 ­2 ­1 0 1 2 3 4

­4

­3

­2

­1

1

2

3

4

x

yMethod 2: Horizontal Rectangles

Example 3: Determine area of the figure with vertices (­2,4), (­3,­1), (6,­1) and (3,4) using integration.

­6 ­5 ­4 ­3 ­2 ­1 0 1 2 3 4 5 6

­6

­5

­4

­3

­2

­1

1

2

3

4

5

6

x

y

Example 4: Verify your results from Example 4 Geometrically

Page 3: 6.1 part 2 Area Between two Curves Blank.notebook · 6.1 part 2 Area Between two Curves Blank.notebook 1 March 31, 2017 Area between Relations/Functions using Horizontal Rectangles

6.1 part 2 Area Between two Curves  Blank.notebook

3

March 31, 2017