Sketch the graph of the ellipse \(\ds \frac{x^2}{9}+\frac{y^2}{16}=1\) and determine its foci. Let \(C\) be the conic which consists of all points \(P=(x,y)\) such ...

https://doi.org/10.5951/mathteacher.110.5.0380 • https://www.jstor.org/stable/10.5951/mathteacher.110.5.0380 Copy URL In this 3-part activity, students use paper ...