Find the domain. Write the answer in interval notation. $$z ( a ) = \sqrt { a + 5 }$$
A) $( - 5 , \infty )$
B) $( - \infty , \infty )$
C) $[ 0 , \infty )$
D) $[ - 5 , \infty )$

Question

Quizplus · Accepted Answer

The domain of the function $z(a) = \sqrt{a + 5}$ consists of all values of $a$ for which the expression under the square root, $a + 5$, is non-negative. This means $a + 5 \geq 0$, which simplifies to $a \geq -5$. Therefore, the domain is $[ - 5 , \infty )$.

Find the Domain z(a)=a+5z ( a ) = \sqrt { a + 5 }z(a)=a+5​

Find the Domain $z ( a ) = \sqrt { a + 5 }$