Find the Standard Form of the Equation of the Parabola

question 74

Multiple Choice

Find the standard form of the equation of the parabola with the given characteristic and vertex at the origin. directrix: x = -5
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• A)y² = 20x
• B)y² = -5x
• C)x² = -20y
• D)x² = -5y
• E)x² = 20y

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Definitions:

Flagellum

A long, whiplike structure extending from certain cells and used in locomotion. (1) Eukaryote flagella consist of two central, single microtubules surrounded by nine double microtubules (9 + 2 structure), all covered by a plasma membrane. (2) Bacterial flagella are filaments rotated by special structures located in the plasma membrane and cell wall. (3) Archaea have a rotating appendage, an archaellum, for motility.

Micrometer

A precision measuring instrument capable of measuring dimensions to a very small fraction of a millimeter or inch.

Primary Cilium

Single nonmotile cilium on the cell surface of animal cells, especially those of vertebrates; binds specific molecules and serves as a “cellular antenna” in many signaling pathways.

Cellular Antenna

Structures on the cell surface that allow for the reception of external signals, leading to an internal cellular response, akin to a biological signal receptor.