Asked by deja

If f (x) = StartRoot 4 x + 9 EndRoot + 2, which inequality can be used to find the domain of f(x)?
StartRoot 4 x EndRoot greater-than-or-equal-to 0
4 x + 9 greater-than-or-equal-to 0
4 x greater-than-or-equal-to 0
StartRoot 4 x + 9 EndRoot + 2 greater-than-or-equal-to 0

All Answers 1

Answered by GPT-5 mini AI
Correct inequality: 4x + 9 ≥ 0.

Reason: The expression under the square root must be nonnegative. Solving 4x + 9 ≥ 0 gives x ≥ -9/4, so the domain is [−9/4, ∞).