Find the Domain and Range of the Function $f ( x ) = x ^ { 2 } + 2 x - 4$

Find the domain and range of the function.
$f ( x ) = x ^ { 2 } + 2 x - 4$

A) $\text { Domain: } ( - \infty , \infty ) \text {; Range: } [ - 5 , \infty )$
B) $\text { Domain: } ( - \infty , \infty ) \text {; Range: } [ - 1 , \infty )$
C) $\text { Domain: } [ - 5 , \infty ) \text {; Range: } ( - \infty , - 1 ]$
D) $\text { Domain: } [ - 5 , \infty ) \text {; Range: } ( - \infty , 0 ]$

Correct Answer:

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