what is the domain of the function $y = 2sqrt{x - 5}$?\n$xgeq - 5$\n$xgeq 2$\n$xgeq 5$\n$xgeq 10$
what is the domain of the function $y = 2sqrt{x - 5}$?\n$xgeq - 5$\n$xgeq 2$\n$xgeq 5$\n$xgeq 10$
Answer
Explanation:
Step1: Recall domain - rule for square - root
For $\sqrt{u}$, $u\geq0$. Here $u = x - 5$.
Step2: Set up inequality
We set $x−5\geq0$.
Step3: Solve the inequality
Add 5 to both sides: $x\geq5$.
Answer:
C. $x\geq5$