Flashlight The light bulb in a flashlight is at the focus of its parabolic reflector
Chapter 10, Problem 20(choose chapter or problem)
Flashlight The light bulb in a flashlight is at the focus of its parabolic reflector, 1.5 centimeters from the vertex of the reflector (see figure). Write an equation of a cross section of the flashlights reflector with its focus on the positive -axis and its vertex at the origin.
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