Question

Please help 300 points

Answer 1

4x+9>=0

Explanation:

The domain of a square root is that it can’t be less than 0. So we have the equation 4x+9>=0.

Answer 2

4x + 9 ≥ 0

Explanation:

The inside of the square root, the radicand, cannot be negative.

It can only be zero or positive.

Zero or positive is also described as being greater than or equal to 0.

Set the radicand to be greater than or equal to zero.

4x + 9 ≥ 0