By Graphing the Function, Visually Estimate Its Domain and Range $g ( x ) = x ^ { 2 } - 5$

question 162

Short Answer

By graphing the function, visually estimate its domain and range.
- $g ( x ) = x ^ { 2 } - 5$
A) $\text { Domain: } ( - \infty , \infty ) \text {; range: } ( - \infty , \infty )$
B) $\text { Domain: } [ 5 , \infty ) ; \text { range: } [ 5 , \infty )$
C) $\text { Domain: } ( - \infty , \infty ) \text {; range : } [ - 5 , \infty )$
D) $\text { Domain: } [ 5 , \infty ) ; \text { range: } ( - \infty , \infty )$

• A) \(\text { Domain: } ( - \infty , \infty ) \text {; range: } ( - \infty , \infty )\)
• B) \(\text { Domain: } [ 5 , \infty ) ; \text { range: } [ 5 , \infty )\)
• C) \(\text { Domain: } ( - \infty , \infty ) \text {; range : } [ - 5 , \infty )\)
• D) \(\text { Domain: } [ 5 , \infty ) ; \text { range: } ( - \infty , \infty )\)

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Definitions:

Deadweight Loss

The loss of economic efficiency that can occur when the equilibrium for a good or a service is not achieved or is not achievable.

Tax Revenues

The income that is gained by governments through taxation, which is then used to fund public services and infrastructure.

Deadweight Loss

The loss of economic efficiency that occurs when the equilibrium outcome is not achievable or not achieved in a market.

Tax Revenue

The financial earnings acquired by governments via taxation.