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What is the length of the major axis of the conic section shown below? (x + 2)(y-1) 49 25 1

What is the length of the major axis of the conic section shown below? (x + 2)(y-1) 49 25 1-example-1

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From the ellipse equation


((x+h)^2)/(a^2)+((y+k)^2)/(b^2)=1

the length of the major axis is equal to 2a. By comparing this equation with the given one, we can note that


\begin{gathered} a=7 \\ \text{because} \\ 7^2=49 \end{gathered}

Then, the length of the major axis is 2x7 = 14

User Li Xiong
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