Find $g \circ f$ $f ( x ) = x - 9 \quad g ( x ) = x ^ { 2 }$

question 413

Multiple Choice

Find $g \circ f$ .
$f ( x ) = x - 9 \quad g ( x ) = x ^ { 2 }$

• A) \(( g \circ f ) ( x ) = x ^ { 2 } - 18 x + 81\)
• B) \(( g \circ f ) ( x ) = x ^ { 2 } - 81\)
• C) \(( g \circ f ) ( x ) = x ^ { 2 } - 9 x + 81\)
• D) \(( g \circ f ) ( x ) = x ^ { 2 } - 9\)
• E) \(( g \circ f ) ( x ) = x ^ { 2 } + 81\)

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Definitions:

Objective Lens

An objective lens is the part of a microscope or telescope that gathers light from the sample being observed and focuses it to create an image.

Ocular Lens

The lens inside the eye that focuses light on the retina to create clear images.

Oil-immersion

A technique used in light microscopy where an oil with a high refractive index is placed between the specimen slide and objective lens to increase resolution.

Low-power

Typically refers to a setting or condition involving low-level energy or magnification.