Find the Domain and Range of the Function $$f ( x ) = x ^ { 2 } - 18 x + 87$$

question 145

Multiple Choice

Find the domain and range of the function.
- $$f ( x ) = x ^ { 2 } - 18 x + 87$$

• A) Domain: \(( - \infty , \infty )\); Range: \([ 6 , \infty )\)
• B) Domain: \(( - \infty , \infty )\); Range: \([ 9 , \infty )\)
• C) Domain: \([ 6 , \infty )\); Range: \(( - \infty , 9 ]\)
• D) Domain: \([ 6 , \infty )\); Range: \(( - \infty , 0 ]\)

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Definitions:

Equilibrium Price

The price point in the market at which the supply of goods matches the demand for those goods.

Price Floor

A government-set minimum price for goods or services, above the market equilibrium price, aimed at preventing prices from falling too low.

Price Controls

Government-imposed limits on prices charged for goods and services to manage economy.

Deadweight Loss

A reduction in economic effectiveness that happens when a good or service does not reach or cannot reach its equilibrium.