OpenStax, Algebra and Trigonometry 2e §12.3 The Parabola · Exercise 70 · Geometry · Conic sections
The Parabola · Exercise 70
If the reflector in the searchlight from the previous exercise has the light source located 6 inches from the base along the axis of symmetry and the opening is 4 feet, find the depth.
This exercise builds on another exercise in its source book, which isn't shown here.
OpenStax, Algebra and Trigonometry 2e · §12.3 The Parabola · Exercise 70
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