Conic Sections: Ellipses

think icon Think & Click: Writing the Equation of an Ellipse

Now, you try. Complete the Think & Click activity by looking at each problem below, thinking about it, and then clicking on the question to reveal the solution.

Find the equation of the ellipse with vertices (0, 5) and (0, -5) and foci (0, 3) and (0, -3).
 
x squared divided by 16 plus y squared divided by 25 equals 1
 
Find the equation of the ellipse with foci (5, 0) and (-5, 0) and co-vertices (0, 2) and (0, -2).
 
x squared divided by 29 plus y squared divided by 4 equals 1