9 Answered Questions for the topic Ellipses
Ellipses Algebra
10/23/17
To 2 decimal places, what is the value of d?
An ellipse has equation ax2+by2=c where a = 20, b = 45 and c = 232. One of the vertices, (0, d), lies on the positive y-axis. To 2 decimal places, what is the value of d?
09/21/17
Find exact equation of tangent line and normal line
find equation of tangent line and normal line given x2/25 + y2/9 = 1 with coordinates (5sqrt(2)/2, 3sqrt(2)/2)
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Ellipses Conics
05/18/16
The equation
The equation 4x^2+9y^2-36y = 0 defines a shifted ellipse. Write this equation in the standard form, find the center, focus, vertices of this ellipse, the lengths of major and minor axes and sketch...
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05/05/16
An arch is in the form of a semi-ellipse whose span is 24 feet wide. The height of the arch is 10 feet. Find the equation of the ellipse.
A. x2/24 + y2/10 = 1B. x2/144 + y2/100 = 1C. x2/100 + y2/576 = 1D. x2/576 - y2/100 = 1
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Ellipses
09/16/15
I need help with ellipses and graphing them. Help would be appreciated
standard form of 3x^2+5y^2-12x+30y+42=0
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Ellipses
09/15/14
write the equation of an ellipse centered at the origin that has a horizontal major axis, e=1/2, and 2c=1
how do I solve this, write an equation of an ellipse center at the origin that has a horizontal major axis,e=1/2,and 2c=1
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Ellipses
09/15/14
Given the Ellipses formula, I need help in how to solve for b^2.
x^2/a^2 + y^2/b^2 = 1 solve for b^2
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05/17/14
Find the vertices, foci and eccentricity of the ellipse. 9x2 + y2 = 81
Find the vertices, foci and eccentricity of the ellipse. 9x2 + y2 = 81 I would like to see the steps and the answer to better understand it
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Ellipses
05/16/13
Vertex at (0,5); co-vertex at (1,0)
Write an equation in standard form for the ellipse with the center at the origin
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