# what is the foci of the ellipse (x+5)^2/4+(y-1)^2/16=1

609 results
1. ## Algebra

the foci of the ellipse given by the equation 100x2 + 25y2 = 2500?

2. ## math

write an equation in standard form for the ellipse with foci (7,0) and (-7,0) and y intercepts 6 and -6

3. ## PreCalc

Find the standard form of the equation of the ellipse with the following characteristics. foci: (+/-5, 0) major axis of length: 22

4. ## Algebra

Find an equation of an ellipse satisfying the given conditions: ​Foci: ​(−2​,0) and (2​,​0) Length of major​ axis: 8 Thank you

5. ## Math

Find an equation for the ellipse. center:(3,2) a=3c Foci:(1,2)(5,2) h=3 k=2 I do not know where to start.

6. ## math

Find the vertices, foci, and eccentricity of the ellipse. Thank you. x^2/16 + y^2/25 = 1

7. ## College Algebra

A carpenter is cutting a 3ft by 4ft elliptical sign from a 3ft by 4ft piece of plywood. The ellipse will be drawn using a string attached to the board at the foci of the ellipse. A)How far from the ends of the board should the string be attached? B)How

8. ## Math

Write the equation of the ellipse using the given information: The ellipse has foci (4, 1) and (8, 1) and vertices (1, 1) and (11, 1);

9. ## Precalc

Write the equation in standard form of the ellipse with foci (8, 0) and (-8, 0) if the minor axis has y-intercepts of 2 and -2. is the answer: x/64+y/4=1

10. ## Calc

Oscar Corporation is planning to construct an elliptical gate at its headquarters. The width of the ellipse will be 5 feet across and its maximum height along the center will be 3 feet. The company wants to place two bright spots at the foci of the

11. ## math

How do I write an equation for the ellipse with the following: Foci (9,0) &(-9,0) and x-intercepts (15,0) and (-15,0)

12. ## math

Find the vertices, foci, and eccentricity of the ellipse. 64x^2 + 81y^2 = 5184

13. ## Math

Find the vertices, center, asymptotes, and foci of the ellipse and sketch its graph: 9x^2-4y^2-18x+8y+41=0

14. ## Math

I am terrible at ellipse The base of an auditorium is in the form of an ellipse 200ft long and 100 ft wide. A pin dropped near one focus can clearly be heard at the other focus. Determine the distance between the foci to the nearest tenth of a foot. Show

15. ## Math

1.) Write the standard form equation for the following Ellipse. Use the information given below. Foci: (0,0) and (4,0) 2.) Write the standard form equation for the following Hyperbola. Use the information below. Vertices (-2,1) and (2,1) Foci: (-3,1) and

16. ## math

Find the foci of the ellipse whose major axis has endpoints \$(0,0)\$ and \$(13,0)\$ and whose minor axis has length 12.

17. ## College Algebra

Find the vertices and foci of the ellipse with the given equation: 5x^2+7y^2=35

18. ## math

Find the center, vertices, and foci of the ellipse with equation 3x^2 + 8y^2 = 24.

19. ## Algebra

Please help-What is the equation of the ellipse with foci (0,6), (0,-6) and co-vertices (2,0),(-2,0) Please explain the steps because I have 5 to do for homework-Thank you-I'm really stuck on this

20. ## Calculus

Write the equation of an ellipse with the foci (17, 0) and (-17, 0) and co-verticies (0, 15) and (0, -15).

21. ## Math

Write the standard equation of the ellipse with the given characteristics Vertices: (0,7) (0,-7) foci: (0,2) (0,-2)

22. ## algebra

Please help with this problem: An ellipse and a hyperbola have the same foci, \$A\$ and \$B\$, and intersect at four points. The ellipse has major axis 50, and minor axis 40. The hyperbola has conjugate axis of length 20. Let \$P\$ be a point on both the

23. ## Math

Find the center, vertices, foci, and eccentricity of the ellipse. 9x^2 + 4y^2 - 36x + 8y + 31 = 0 I know the center is (2,-1) For the vertices I had (3,-1)(1,-1) and the foci (3.8,-1)(.20,-1) and e = 1.80 but I think these are wrong.

24. ## math

let equation of an ellipse be x^2+4y^2+6x-8y+9=0 a. Find the standard form of the ellipse b. Find the center c. Find the vertices d. Find the foci e. Find the eccentricity

25. ## Math

Find the equation of an ellipse that have eccentricity 2/5 and foci (-1, 3) and (3, 3) .

26. ## Math/Conics

Find the center, vertices, and foci of the ellipse with the following equation: x^2/9+y^2/16=1

27. ## Math @Reiny

Write the standard form equation for the following Ellipse. Use the information given below. Foci: (0,0) and (4,0) Major Axis of length 8

28. ## Math Word Problem

A carpenter is cutting a 3ft by 4ft elliptical sign from a 3ft by 4ft piece of plywood. The ellipse will be drawn using a string attached to the board at the foci of the ellipse. A)How far from the ends of the board should the string be attached? B)How

29. ## Algebra II Please check-

Please help-What is the equation of the ellipse with foci (0,6), (0,-6) and co-vertices (2,0),(-2,0) Please explain the steps because I have 5 to do for homework-Thank you-I'm really stuck on this I thought the answer would be x^2/4 + y^2/40 = 1 but that

30. ## algebra 2

Graph the equation. Identify the vertices, co-vertices, and foci of the ellipse. 64x^2+16y^2=1024 This is what i have so far vertices (0,8)(0,-8) foci(0,4√3),(0,-4√3)

31. ## alg

identify the conic section. if its a parabols give the vertex if its a circle, give the center and radius. if it is an ellipse or a hyperbola, give the center and foci. again my teacher said the answer is ellipse with center (-4,4), foci at (-4± V3, 4)

32. ## alg2

identify the conic section. if its a parabols give the vertex if its a circle, give the center and radius. if it is an ellipse or a hyperbola, give the center and foci. again my teacher said the answer is ellipse with center (-4,4), foci at (-4± V3, 4)

33. ## AlgebraII

Choose the equation that best represents an ellipse for the given foci and co-vertices. Foci (+/-3,0) Co vertices (0, +/-6)

34. ## mathematic

find the ecentricity and coordinates of foci of the ellipse 16x2 + 9y2= 144

35. ## Math/Algebra

Find the standard equation of an ellipse with the given characteristics and sketch the graph. Vertices at (0,-5), and (0,5); Foci at (0,-4)and (0,4).

36. ## Analytic Geometry

Find the vertices, foci, eccentricity and length of the latus rectum of the ellipse whose equation is x^2 + 9Y^2 = 9

37. ## mathematics

Find the coordinates of foci, vertices, eccentricity of an ellipse and sketch the graph of equation:(x-2)^2\4+(y+3)^2\9=1

38. ## math

This is about ellipses: If a problem gives you two foci points and the length of a spring, how do you find the equation and the vertices of the ellipse?

39. ## Algebra

Write an equation for the ellipse that satisfies the set of conditions. endpoint of major axis at ( 0, 10) and (0, -10) foci at (0, 8) and (0-8) Please help, I really don't understand how to do this

40. ## Give the coordinates of the center, foci, vertices

Give the coordinates of the center, foci, vertices, and covertices of the ellipse with the given equation. Sketch the graph, and include these points. 4(x + 2) 2 + (y+4) 2 4 = 1

41. ## Math

Write the equation of the ellipse using the given information: The ellipse has foci (–4, 0) and (–4, 4) and vertices (–4, –1) and (–4, 5);

42. ## Algebra 2

Choose the equation that best represents an ellipse for the given foci and co-vertices. 1. foci (+-2, 0) co-vertices (0, +-4) 2. foci (+-3, 0) co-vertices (0,+-6) 3. foci (0, +-3) co-vertices (+-5, 0) Choose the equation for the hyperbola centered at the

43. ## math

An ellipse and a hyperbola have the same foci, \$A\$ and \$B\$, and intersect at four points. The ellipse has major axis 50, and minor axis 40. The hyperbola has conjugate axis of length 20. Let \$P\$ be a point on both the hyperbola and ellipse. What is \$PA

44. ## Algebra 2

an ellipse has __ number of foci? A)1 B)2 C)3 D)4

45. ## pre-calculous

How to get the foci and vertices of an ellipse with the equation of (x+3)^2/24 + (y-5)^2/49=1?

46. ## math

Find the foci for the equation of an ellipse: 2x^2 + 8x + y^2 + 4 = 0

47. ## Pre - CALCULUS

Locate the foci of the ellipse. Show your work. 𝑥2/36+ y2/11=1

48. ## College Algebra.

Find the equation in standard form of the ellipse, given Center (-2,4),vertices (-6,4) and(2,4) foci (-5,4) and (1,4)

49. ## Math

Write the standard equation of the ellipse with the given characteristics Center:(0,0) foci: (2,0) (-2,0) vertices:(5,0) (-5,0)

50. ## bobpursley

write the equation of the ellipse with foci at (0, -sqrt3) and (0, sqrt 3) and for which 2a=4 i've done this befoe, but with squareroots as endpoints. and if 2a=4, a=2, right? Please help me.

51. ## geometry

The area of an ellipse in the form (x*x/a*a)+(y*y)/(b*b)=1 is A=3.14*ab. For this ellipse, a+b=20. a. write the area of the ellipse as a function of a. b. Find the equation of the ellipse with an area of 264 square centimeters. c. Complete the table and

52. ## maths

Given the equation of an ellipse is 4x^2 + y^2 + 24x - 6y + 9 = 0 (i) Find the centre,foci and vertices (ii)calculate the lengths of the major and minor axes

53. ## math

For the following problem we are asked to find an equation for the conic that satisfies the given conditions: 1. Ellipse, foci (0, -1), (8, -1), vertex (9, -1) For the solution I got: [(x – 4)^2]/25 + [(y + 1)^2]/3 = 1 Is this correct?

54. ## Analytic Geometry

How can i identify in the graph of an ellipse where is b, a, c, the vertices, the foci, the latus rectum, the essentricity and the directrix. Please reply. Needed for my studies tonight :/ midterm exam tom. :/

55. ## Ellipses:)

Given the ellipse with foci at (5,3) and (5,-5) and a major axis length of 12, determine the center using ( , ) and the denominators of the equation Center(x )^2/?, (y )^2/?=1

56. ## Algebra

1. What is the equation an ellipse with foci at (0, ±2 √10 ) and x-intercept at (9, 0)? 2. What is the equation of an ellipse with foci at (±4, 0) and a minor axis of length 6?

57. ## physics

The angular momentum of a planet is conserved if taken with respect to: a)The center of the ellipse b) The focus of the ellipse at the sun c)The focus of the ellipse opposite the sun d)Both foci of the ellipse

58. ## pre-calculus

the foci of an ellipse are (0,2) (0,-2) and the eccentricity is 1/2. determine the equation of the ellipse. write your answer in standard form.

59. ## algebra 2

If you move the two foci of an ellipse together so that they become a single point, then the ellipse will become a(n)?

60. ## Math Help

What are all the foci’s for this ellipse? x^2/9+y^2/16=1

61. ## alg. 2

what is the foci of the ellipse X2 over 81 + Y2 over 49=1

62. ## math

The ellipse has foci (0, 3) and (0, –3) and vertices (0, 5) and (0, –5);

63. ## science

the separation of the foci of an ellipse that describes a planet's orbit derermines A eccentricity of the orbit B period of the orbit C size of the orbit D all of the above. I think it is A because the closer the foci, the more circular versus elliptical

64. ## physics

the separation of the foci of an ellipse that describes a planet's orbit derermines A eccentricity of the orbit B period of the orbit C size of the orbit D all of the above. I think it is A because the closer the foci, the more circular versus elliptical

65. ## Algebra II

Graph each ellipse and find its foci : a) 3x^2+y^2=12 b) 5x^2+9y^2=45

66. ## math

Find the vertices, foci and eccentricity of the ellipse.Thank you 9x^2 + y^2 = 81

67. ## math

Find the foci of the ellipse: (x^2/400)+(y^2/625)=1

68. ## maths

Given the equation of an ellipse as 5x^2+3y^2-15=0 find the centre and foci

69. ## Pre-calculus

For the ellipse with equation 5x^2+64y^2+30x+128y-211=0, find the cooridinates of the center, foci, and vertices. Then, graph the equation. my answer is: coordinates of center: (-3,1) foci:(-11,-1) and (4.7,-1) vertices: (-11,-1) (5,-1) (-3,-1+-square root

70. ## algebra

Find the vertices and foci of this ellipse 4x^2+16y^2+64x+64y+256=0

71. ## Pre-Calculus

Locate the foci of the ellipse. Show your work. x^2/36+y^2/11=1 c^2=a^2-b^2 c^2=36-11 c^2=25 c= ± sqrt25 c= ±sqrt5*5 is this correct?

72. ## maths

given equation of an ellipse as5x^2+3y^2-15=0.find center,foci,vertices andeccentricity andgraph

73. ## Mathematics

Determine equation of the ellipse if the distance between its foci is 2sqrt5 and the end points of its minor axis are (-1,-2) and (3,-2).

74. ## precalc

Find the standard form equation for each ellipse described. 1) Major vertices at (0, 3) and (0, -3), minor vertices at (2, 0) and (-2, 0) 2) Major vertices at (7, 0) and (-7, 0), foci at (5, 0) and (-5, 0) 3) Minor vertices at (-2, -3) and (-2, -11), foci

75. ## Precalculus

"Sketch the ellipse. Find the coordinates of its vertices and foci. 34. x^2 + 25y^2 - 6x - 100y + 84 = 0 (Hint: Complete the squares in x and y. Begin by writing the equation in this form: (x^2 - 6x + ___) + 25(y^2 - 4y + ___) = -84.)" ==> I used the hint

76. ## Algebra II

Please help-I'm totally lost- What is the equation of the ellipse with foci(-10,0), (10,0) and co-vertices (0,-3),(0,3) x^2/109 + y^2/9 = 1 X62/100 + y^2/9 = 1 Please show me the steps because I have others to do and I'm really stuck

77. ## pre-cal

a rectangular board is 2 by 12 units. How far from the short sides of the board will the foci be located to determine the largest elliptical tabletop? a rectangular board is 2 by 12 units. How far from the short sides of the board will the foci be located

78. ## ellipses

Given an ellipse; 3x^2+5y^2-12x-50y+62=0, find the Center, the Major Axis, the Minor Axis, & the distance from C to Foci?

79. ## ellipses

Given an ellipse; 3x^2+5y^2-12x-50y+62=0, find the Center, Major Axis, Minor Axis, & the distance from C to Foci?

80. ## maths

Given that the ellipse x^2/a^2 + y^2/b^2 =1 has foci at(+/-ae,0)where e is the eccentricity and b^2=a^2(1-e^2),find the coordinates of the foci and the value of e^2 for the ellipse X^2+4y^2 =16

81. ## math

if you have the ellipse (x^2/a^2)+(y^2/b^2)=1 and a>b what would the sum of the distances from a point (x,y) on the ellipse to each of the foci be.

82. ## algebra

An ellipse has foci (0,+-3) and vertices (0,+-4). What is the eccentricity of the ellipse? Please help.

83. ## math

The equation 4x^2 +9y^2 -36 = 0 represents an ellipse in standard position. Find the coordinates of the foci and the equations of the directrices. The Foci are (+-f, 0) where f>0 I have worked out f=sqrt(5) not sure how to work out the directrices (d)

84. ## Algera

identify the vertices, the co-vertixes, and the foci of the ellipse x^2/4+y^2/9=1 A. the vertexes are (0,2) and (0,-2). The co-vertexes are (3,0) and (-3,0). The foci are ((0, 3√5) B. The vertex ices are (0,3) and 0.-3). The co-vertex are (2,0) and

85. ## Algebra

I need help filling in the blank and answering the question. 1. If you move the two foci of an ellipse together so that they become a single point, then the ellipse will become a/an------. 2. What happens when the major and minor axes are exactly the same

86. ## algebra

Choose the equation that best represents an ellipse for the given foci and co-vertices. foci (+or- 3,0) co-vertices (o, + or- 6)

87. ## Math Check

Hi! Can someone check my answers? Thanks! Questions: 1.) What are all of the foci's for this Ellipse? (x-2)^2/3 + (y-2)^2/4=1 A.) (3,2) B.) (2,2) C.) (1,2) D.) (2,3) E. (2,1) My answer: B & E. 2.) What is the eccentricity for this Ellipse? A.) 2 B.) 1/2

88. ## alg 2

what is the foci of the ellipse (x+5)^2/4+(y-1)^2/16=1

89. ## alg 2

find the foci of the ellipse (x+5)^2/4+(y-1)^2/16=1

90. ## math

According to the given information write the equation and the foci of the ellipse. Vertices: (2, 1), (−2, −1), (−6, 1), and (−2, 3).

91. ## Math/Algebra

Graph the ellipse and locate the foci. 16x^2 +9y^2= 144

92. ## precal

complete the square to identify what type of conic you have, identify the key parts indicated and then graph conic. parabola: vertex,focus, directrix, focal diameter. ellipse: center,vertices, foci, eccentricity. hyperbola: center, vertices, foci, slope of

Write the standard equation of the ellipse with the given characteristics I have no ideal how to do this Center:(0,0) foci: (2,0) (-2,0) vertices:(5,0) (-5,0)

Please help-What is the equation of the ellipse with foci (0,6), (0,-6) and co-vertices (2,0),(-2,0) Please explain the steps because I have 5 to do for homework-Thank you-I'm really stuck on this I thought the answer would be x^2/4 + y^2/40 = 1 but that

95. ## math

find equation of the ellipse whose center is at the origin and foci f(2,2) f(-2,-2) and length of semi-major axis is square root of 8?

96. ## Pre-Calculus

Find the equation of the ellipse whose semi-major axis has length 6 and whose foci are at (3,-2+/-sqrt11). I have the focal constant = 2a which means that a=3 but don't know how to proceed. Thanks.

97. ## Calculus

I seriously do not understand anything about this problem Please help. The equation of an ellipse centered at the origin is (x^2/a^2) + (y^2/b^2)=1 The area of the upper half of the ellipse can be determined by finding the area between the ellipse and the

98. ## Ellipses

Given an ellipse; 8x^2+y^2+80x-6y+193=0, find center, major axis, minor axis, & distance from c to foci?

99. ## Math

Find an equation of the ellipse with its center at the origin. center(0,0) foci(2,0)(-2,0) major axis=8 My answer is x^2/16 + y^2/15 = 1. Is this correct?

100. ## Math

Find the center, vertices, foci, and eccentricity of the ellipse. 9x^2 + 4y^2 - 36x + 8y + 31 = 0 My answer was: center=(2,1) v=(-2,10)(-2,-10) f=(-2,11)(-2,-11) e=11/3 Where did I make a mistake?