Questions on Algebra: Conic sections - ellipse, parabola, hyperbola answered by real tutors!

Tutors Answer Your Questions about Quadratic-relations-and-conic-sections (FREE)

Question 310657: what's the center and foci of the ellipse (x+5)^2/9 +(y-7)^2/25=1
Click here to see answer by Edwin McCravy(20059)

Question 310643: Find the center, vertices, and foci of the ellipse x^2+4y^2-6x+24y+41=0
Click here to see answer by Fombitz(32388)

Question 310800: Find an equation of an ellipse having the given intercepts:
x-intercept: �� 6
y-intercept: �� 12
Click here to see answer by Alan3354(69443)

Question 310974: identify the conic section given by 121x^2=49+144y^2
Click here to see answer by Fombitz(32388)

Question 310974: identify the conic section given by 121x^2=49+144y^2
Click here to see answer by CharlesG2(834)

Question 311025: Which is an equation for the parabola that has vertex (4,2) and passes through the point (-1,-73)?
Click here to see answer by Fombitz(32388)

Question 311070: how can i find the x-intercepts of the parabola with vertex (-1,2) and y-intercept (0,-3)
Click here to see answer by solver91311(24713)

Question 311096: what is the standard form of an equation?
Click here to see answer by Alan3354(69443)

Question 311211: I want to know why 4 is used in solving parabolas in conics?
Click here to see answer by Fombitz(32388)

Question 311310: Write an equation of an ellipse centered at the origin that has a horozontal axis of length 20 and vertical axis of length 8.

Jeff said a circle is also an Ellipse. Is he correct. Explain.

Find the center Major axis, minor axis and the ellipse with equation
(x+3)^2/9 + y^2/25 =1

Please please help me.
Click here to see answer by solver91311(24713)

Question 311418: What is the standard form for the equation as a parabola?
Click here to see answer by JBarnum(2146)

Question 311794: Circle with center at (-1,2) and radius 4. equation for conic section
Click here to see answer by Alan3354(69443)

Question 312030: how do you write in standard form y = 1/3(x-2)^2 + 4? I know how to do some of the problem. I'm stuck on how to get rid of the 1/3.
y = 1/3(x-2)^2 + 4
y = 1/3(x^2 - 4x + 4) + 4
y = (x^2)/3 - 4x/3 + 4/3 + 4 or 3y = x^2 - 4x + 8
This is where I am stuck....help please!!!!!!
Click here to see answer by Fombitz(32388)

Question 312135: . Without graphing, find the minimum value.

7
-11

11

Click here to see answer by Fombitz(32388)

Question 312141: The formula s = 16t2 is used to approximate the distance s, in feet, that an object falls freely (from rest) in t seconds. Use this formula to solve the problem. (Round answer to the nearest tenth.)
A man drops his keys off a building 1420 ft high. How long does it take the keys, falling freely, to hit the ground

Click here to see answer by nerdybill(7384)

Question 312622: This is a matrix :
[ 7 -8 5 3
-2 8 6 6 ]
I was asked to find position a12
Click here to see answer by Fombitz(32388)

Question 312946: Graph the equation
(x-3)^2+(y-2)^2=4
Click here to see answer by Alan3354(69443)

Question 312946: Graph the equation
(x-3)^2+(y-2)^2=4
Click here to see answer by solver91311(24713)

Question 312994: x^2+6x+y^2-2y=90
Click here to see answer by Fombitz(32388)

Question 313004: x^2+6x+y^2-2y=90.....What is the conic section and identify the sections? What is the center points, vertices, foci, co-vertices, and directrix? what is the domain and range of each?
Click here to see answer by rapaljer(4671)

Question 313103: given
(x-2)+8(y+5)2
find vertex
focal length
focus
width of latus rectum
directix
axis of symmetry
eccentricity

Click here to see answer by Fombitz(32388)

Question 313188: 9x^2-16y^2=144
Click here to see answer by nyc_function(2741)

Question 314130: describe the graph of the parabola given the equation y=1/16x2
Click here to see answer by Fombitz(32388)

Question 314229: Find the focus, directrix, and focal diameter of the parabola.
9x + 7y2 = 0
focus (x, y) =
directrix
focal diameter
graph:
Click here to see answer by Fombitz(32388)

Question 314414: which equation represents a hyperbola? and why
1. y^2=16-x^2
2. y=16-x^2
3. y=16x^2
4. y=16/x
Click here to see answer by Fombitz(32388)

Question 314318: Let a, b>0. Find the equation of the parabola y = ax2 + bx + y that passes through the points (-a,0), (0, b), and (a, 0)
Click here to see answer by Fombitz(32388)

Question 314495: Find an equation for the circle C with center at (3, -5) tangent to the y-axis.
Find an equation for the parabola B with focus (3, 1) and directrix x = 7.
Click here to see answer by Fombitz(32388)

Question 314676: Find the coordinates of the point halfway between (3,4) and (-2,5)
Click here to see answer by Fombitz(32388)

Question 314666: How do u graph this Parabola: y=x^2-1
Click here to see answer by nyc_function(2741)

Question 314678: Solving systems of three equations:
3x + 4y + z = 14
2y + 7z = 25
-2y + 3z = 5
Click here to see answer by checkley77(12844)

Question 314699: write an equation for an ellipse with x-intercepts (positive and negative 2, 0) and y-intercepts (0, positive and negative 5)
Click here to see answer by Edwin McCravy(20059)

Question 314735: Please help me find the x and y intercepts of this circle: 9x^2 + 9x^2 -6x +12y -31=0
Click here to see answer by solver91311(24713)

Question 314698: The point(-6,-6) lies on a circle whose center is at (-5,4) . Find an equation of this circle.

Click here to see answer by scott8148(6628)

Question 314679: Find the formula for a hyperbola with foci on the y-axis, given that the asymptotes are y= (positive and negative) 5/3 x and what are the coordinates of the foci
Click here to see answer by Edwin McCravy(20059)

Question 315003: Find the vertices of a hyperbola with the equation (x + 3)2 � 4(y � 2)2 = 4
Click here to see answer by Fombitz(32388)

Question 315263: How do i identify the following equation as that of a line, a circle, an ellipse, a parabola, or a hyperbola.
ex:3y2 - x = 0
Click here to see answer by Fombitz(32388)

Question 315263: How do i identify the following equation as that of a line, a circle, an ellipse, a parabola, or a hyperbola.
ex:3y2 - x = 0
Click here to see answer by solver91311(24713)

Question 315531: please help me solve this question:
y^2+2y=x^2+x
is this equation a parabola, circle, ellipse, or hyperbola? how do you know?
thnks
Click here to see answer by Edwin McCravy(20059)

Question 315531: please help me solve this question:
y^2+2y=x^2+x
is this equation a parabola, circle, ellipse, or hyperbola? how do you know?
thnks
Click here to see answer by stanbon(75887)

Question 315532: x^2/a^2- y^2/a^2=1 find the coordinates of the vertices and co-vertices

Click here to see answer by Fombitz(32388)

Question 315697: GRAPH BOTH EQUATIONS OF THE SYSTEM ON THE SAME COORDINATE AXES. USE ELIMINATION OF VARIABLES TO FIND ALL POINTS OF INTERSECTION.
y = x^2 + 5x + 6
y = x + 11
Click here to see answer by Fombitz(32388)

Question 316174: FIND THE EQUATION OF THE PARABOLA WITH THE GIVEN FOCUS AND DIRECTRIX.
focus (-4,5) directrix y = 4

Click here to see answer by Fombitz(32388)

Question 316416: I need helping identifying and graphing: x^2-6x-y^2+4y+4=0
Thank you.
Click here to see answer by stanbon(75887)

Question 316558: In my homework, I am asked to graph a hyperbola by first identifying the x-intercepts, the extent, and the asymptotes. I understand what the x-intercepts and asymptotes are, but what is the extent? I have looked all through my textbook, other textbooks, and online and I cannot figure out what is meant by "extent."
Click here to see answer by solver91311(24713)

Question 316878: How do i identify the vertex, focus, and directrix of y=1/12x^2
Click here to see answer by Fombitz(32388)

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