Skip to Content

Calculus 3: Cylinders and quadric surfaces

Given a contour plot with yellow representing higher values and blue representing lower values, visualize what the surface would look like in 3-dimensional space.

Given an ellipsoid represented by the equation x21+y24+z29=1\frac{x^2}{1} + \frac{y^2}{4} + \frac{z^2}{9} = 1, determine the lengths of the axes in the coordinate planes.

For the cone represented by the equation x24+y29=z216\displaystyle \frac{x^2}{4} + \frac{y^2}{9} = \frac{z^2}{16}, determine the intersection traces with the coordinate planes.

For a circular paraboloid given by z=x2+y2z = x^2 + y^2, determine its axis of symmetry and describe the shape of its traces in the coordinate planes.

Analyze the hyperbolic paraboloid represented by the equation z=x2y2z = x^2 - y^2, and determine the shape of its traces in the coordinate planes.

For a hyperboloid of one sheet given by x2+y2z2=1x^2 + y^2 - z^2 = 1, identify the axis of symmetry and describe the coordinate plane traces.

For a hyperboloid of two sheets represented by z2x2y2=1z^2 - x^2 - y^2 = 1, analyze its traces in the coordinate planes and describe its shape.

Sketch the quadric surface for the equation x2+z2=1x^2 + z^2 = 1.

Using the equation z=1y2z = 1 - y^2, sketch the graph and determine its characteristics.

Find the equation of a quadric surface using the general form Ax2+By2+Cz2+Dxy+Exz+Fyz+Gx+Hy+Iz+J=0Ax^2+By^2+Cz^2+Dxy+Exz+Fyz+Gx+Hy+Iz+J=0.

Find the traces on the xy, xz, and yz planes for the quadric surface given by the function 2x2+9y2+18z2=182x^2 + 9y^2 + 18z^2 = 18.

Divide the equation by 144 to identify the quadric surface for the given equation, which results in an ellipsoid.

Complete the square to transform the equation into the standard form of an elliptic paraboloid.

Graph the cone using the equation z2c2=x2a2+y2b2\frac{z^2}{c^2} = \frac{x^2}{a^2} + \frac{y^2}{b^2} with the given axes.

Graph the ellipsoid using the equation x2a2+y2b2+z2c2=1\frac{x^2}{a^2} + \frac{y^2}{b^2} + \frac{z^2}{c^2} = 1 with the given axes.

Graph the elliptic paraboloid using the equation zc=x2a2+y2b2\frac{z}{c} = \frac{x^2}{a^2} + \frac{y^2}{b^2}.

Graph the hyperboloid of one sheet using the equation x2a2+y2b2z2c2=1\displaystyle \frac{x^2}{a^2} + \frac{y^2}{b^2} - \frac{z^2}{c^2} = 1.

Graph the hyperboloid of two sheets and explain why it does not pass through the origin, using its equation with two negative terms.

Graph the hyperbolic paraboloid using the equation zc=x2a2y2b2\displaystyle \frac{z}{c} = \frac{x^2}{a^2} - \frac{y^2}{b^2}.