If $f ( x ) = - x ^ { 2 } + 4$

question 247

Multiple Choice

If $f ( x ) = - x ^ { 2 } + 4$ , find $f ( - 3 )$ .

• A) 13
• B) -5
• C) 5
• D) -2

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Definitions:

Copper

A reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, used in a wide variety of applications.

Metals

Metals are elements that are good conductors of electric current and heat, have a shiny appearance, and are malleable and ductile.

Mg

Mg is the chemical symbol for magnesium, a lightweight, silvery-white metallic element that is essential for human biology.

K

The symbol for potassium, an essential mineral and electrolyte in the human body, or alternatively, the symbol for the kelvin, a unit of temperature.