oddans82 - Odd-Numbered Answers to Exercise Set 8.2:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Odd-Numbered Answers to Exercise Set 8.2: Ellipses Math 1330, Precalculus The University of Houston Solutions to Chapter 8 Exercises 1. 22 1 42 5 xy += 3. () 24 1 49 −− 5. 53 1 23 7. 2 2 3 1 2 2 1 81 6 y x + 9. (a) c e a = (b) elongated (c) circle 11. (a) Equation: 1 94 9 (b) Center: 0, 0 (c) Vertices of Major Axis: ( ) 0, 7 , 0, 7 Length of Major Axis: 14 (d) Vertices of Minor Axis: ( ) 3, 0 , 3, 0 Length of Minor Axis: 6 (e) Foci: 0 , 21 0, 0 ,21 0 (exact) ( ) 0, 6.3 , 0, 6.3 (decimal) (f) Eccentricity: 21 0 0.9 7 e =≈ (g) Graph: 13. (a) Equation: 2 2 2 1 16 4 x y (b) Center: ( ) 2, 0 (c) Vertices of Major Axis: ( ) 2, 0 , 6, 0 Length of Major Axis: 8 (d) Vertices of Minor Axis: ( ) 2, 2 , 2, 2 Length of Minor Axis: 4 (e) Foci: ( ) 223 , 0 ,223 , 0 −+ (exact) ( )( ) 1.5, 0 , 5.5, 0 (decimal) (f) Eccentricity: 3 0.9 2 e (g) Graph: 15. (a) Equation: 1 25 16 (b) Center: ( ) 2, 3 (c) Vertices of Major Axis: ( ) 3, 3 , 7, 3 Length of Major Axis: 10 (d) Vertices of Minor Axis: ( ) 2, 7 , 2,1 Length of Minor Axis: (e) Foci: 1, 5, 3 (f) Eccentricity: 3 5 e = (g) Graph: −3 −2 −1 1 2 3 4 5 6 7 −4 −3 −2 −1 1 2 3 4 x y FCF 12 −6 −5 −4 −3 −2 −1 1 2 3 4 5 6 7 8 −7 −6 −5 −4 −3 −2 −1 1 2 3 4 5 6 7 x y F C F 2 1 −4 −3 −2 −1 1 2 3 4 5 6 7 8 −8 −7 −6 −5 −4 −3 −2 −1 1 2 x y F C F 1 2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Odd-Numbered Answers to Exercise Set 8.2: Ellipses Math 1330, Precalculus
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/14/2010 for the course MATH 1330 taught by Professor Staff during the Spring '08 term at University of Houston.

Page1 / 5

oddans82 - Odd-Numbered Answers to Exercise Set 8.2:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online