Question

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

Answer 1

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