Solve the Problem $y ^ { 2 } = 60 x$

question 4

Multiple Choice

Solve the problem.
-A parabolic mirror on a telescope 30 cm in diameter has a focal length of 15 cm. For the coordinate system shown, write an equation of the parabolic cross section of the mirror.

• A) \(y ^ { 2 } = 60 x\) for \(- 15 \leq y \leq 15\)
• B) \(x ^ { 2 } = 60 y\) for \(- 15 \leq x \leq 15\)
• C) \(y ^ { 2 } = 15 x\) for \(- 15 \leq y \leq 15\)
• D) \(y ^ { 2 } = 60 x\) for \(- 30 \leq y \leq 30\)

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