Give the Focus, Directrix, and Axis for the Parabola $2 \mathrm{~m}$

question 36

Multiple Choice

Give the focus, directrix, and axis for the parabola.
-A radio telescope has a parabolic surface. If it is $2 \mathrm{~m}$ deep and $16 \mathrm{~m}$ wide, how far is the focus from the vertex?

• A) \( 32 \mathrm{~m} \)
• B) \( 4 \mathrm{~m} \)
• C) \( 8 \mathrm{~m} \)
• D) \( 2 \mathrm{~m} \)

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Definitions:

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A class of psychoactive substances that act as central nervous system depressants and are used as sedatives, anxiolytics, muscle relaxants, or anticonvulsants.

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Protein Kinase Sites

Specific regions on enzymes where the addition of a phosphate group occurs, playing a critical role in the activation or inactivation of various proteins.