Final answer:
To sketch the graph of the surface 4x²+y²+z²=16, we can find the traces in each coordinate plane and use them to sketch the surface as a sphere.
Step-by-step explanation:
To sketch the graph of the surface given by the equation 4x²+y²+z²=16, we can start by finding the traces in each of the coordinate planes.
For the xy-plane (z=0), the equation becomes 4x²+y²=16, which is a circle with radius 4 centered at the origin.
For the xz-plane (y=0), the equation becomes 4x²+z²=16, which is another circle with radius 4 centered at the origin.
For the yz-plane (x=0), the equation becomes y²+z²=16, which is a circle with radius 4 centered at the origin.
By using the traces in each plane, we can sketch the surface. The surface represented by the given equation is a sphere centered at the origin with radius 4.