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12.3 Exercise 79

Avg difficulty 2.5

The mirror in an automobile headlight has a parabolic cross-section with the light bulb at the focus. On a schematic, the equation of the parabola is given as x 2 =4y. x^{2} = 4 y . At what coordinates should you place the light bulb?

OpenStax Algebra and Trigonometry 2e, 12.3 The Parabola, exercise 79

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.