## University Calculus: Early Transcendentals (3rd Edition)

Since, we have $x^2+4z^2=y^2$ This can be re-written as: $\dfrac{x^2}{1}+\dfrac{z^2}{(1/2)^2}=\dfrac{y^2}{1}$ Since, the equation is a graph for an Elliptical cone along the y-axis as shown in graph (h).