2. On a particular day, the temperature in tahoe is given by t(u, v) = uv2 , where the origin is located at the northstar lodge. Distances are measured in miles.

Explain vector addition, triangle method and parallelogram method

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Can anybody me with this? ? (picture included.)