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devlian [24]
4 years ago
12

Gabriella is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be m

odeled by (y+3)^2=26(x-2) where x and y are measured in inches. Where should she place the bulb to ensure a perfect beam of light?
Mathematics
2 answers:
Setler [38]4 years ago
7 0
So, the perfect point for the bulb is at parabolic focus. Thankfully, parabolic equation is given in a standart form. So, the visual representation on the carthesian will be a parabola laying sideways facing to the right, with an extremum of (2; -3). Standart view is y^2 = 2px. Then, focal parameter is p = 13. Then, focus will be at (2+0.5p; -3) or (8,5; -3).
Korolek [52]4 years ago
7 0

Answer:

Step-by-step explanation:

The answer is C.

Just took the test

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