Find the domain of f.
-$$f ( x ) = \sqrt { x + 19 }$$
A) $\{ x \mid x

Question

Find the domain of f.
-$$f ( x ) = \sqrt { x + 19 }$$
A) $\{ x \mid x < - 19 \}$
B) $\{ x \mid x \geq - 19 \}$
C) $\{ x \mid x < 19 \}$
D) $\{ x \mid x \geq 19 \}$

Quizplus · Accepted Answer

The domain of f consists of all the values of x that can be plugged into the function without resulting in an undefined expression. In this case, we cannot take the square root of negative numbers, so we need to find the values of x such that x + 19 is greater than or equal to 0. Solving for x, we get x >= -19. Therefore, the domain of f is {x | x >= -19}. Choice B correctly represents this domain.

Find the Domain of F f(x)=x+19f ( x ) = \sqrt { x + 19 }f(x)=x+19​

Find the Domain of F $f ( x ) = \sqrt { x + 19 }$