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Mathematics 13 Online
OpenStudy (anonymous):

What is the length of the major axis? photo attached

OpenStudy (anonymous):

OpenStudy (anonymous):

please explain how you got the answer, thanks!! :)

OpenStudy (phi):

See http://www.algebra.com/algebra/homework/equations/THEO-20100329.lesson ans search down the page for Equation of an ellipse

OpenStudy (anonymous):

what would the answer be in that case? @phi

OpenStudy (phi):

Did you find the Equation of an ellipse section?

OpenStudy (anonymous):

The major axis is the longest one a circle has two major axii

OpenStudy (anonymous):

i'm still confused on how to get the answer.. @t0mmy

OpenStudy (anonymous):

(x-4)^2 / 36 == (x-4) / root 36

OpenStudy (anonymous):

Where root 36 = 6

OpenStudy (anonymous):

The y-axis works out as root 16 = 4 so the 'x' axis is the major axis

OpenStudy (anonymous):

The (x-4) and (y+2) give you the co-ordinates of the centre of the ellipse

OpenStudy (anonymous):

thank you so much

OpenStudy (anonymous):

Have a look at http://www.mathopenref.com/ellipseaxes.html for further info.

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