Identify the set of values x for which y will be a real number. -$$y = \sqrt { x - 8 }$$ A) $\{ x \mid x 8 \}$ B) $\{ x \mid x \leq 8 \}$ C) $\{ x \mid x

Question

Identify the set of values x for which y will be a real number.
-$$y = \sqrt { x - 8 }$$
A) $\{ x \mid x > 8 \}$
B) $\{ x \mid x \leq 8 \}$
C) $\{ x \mid x < 8 \}$
D) $\{ x \mid x \geq 8 \}$

Quizplus · Accepted Answer

For $y = \sqrt{x - 8}$ to be a real number, the expression under the square root, $x - 8$, must be greater than or equal to 0. This means $x \geq 8$, which matches option D.

Identify the Set of Values X for Which Y Will y=x−8y = \sqrt { x - 8 }y=x−8​

Identify the Set of Values X for Which Y Will $y = \sqrt { x - 8 }$