Find the Vertices, Foci, and Directrices of the Given Ellipse

question 57

Multiple Choice

Find the vertices, foci, and directrices of the given ellipse.

• A) vertices ; foci (2, -4), (-8, -4); directrices
• B) vertices ; foci (2, -4), (-8, -4); directrices
• C) vertices (2, -4), (-8, -4); foci ; directrices
• D) vertices (2, -4), (-8, -4); foci ; directrices

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Definitions:

Oil Immersion

A technique used in microscopy to increase the resolving power through the use of oil with a high refractive index.

Objective

A goal or aim to be achieved.

Wet-Mount

A method of slide preparation for microscopic examination where specimens are suspended in a drop of liquid (like water) under a cover slip.

Coverslip

A thin flat piece of transparent material, usually glass, used to cover specimens on a microscope slide.