 So let's find the domain and range of the function f of x equals square root for x plus 3. So first, the domain. Remember, the domain is the set of all possible input values. And since this is a square root function, and you can only take the square root of a non-negative number, this means that we require the radicand for x plus 3 must be greater than or equal to 0. And now we can solve this inequality. And note that in the last step here, we're dividing by 4, and since we're dividing by a positive number, we don't change the direction of the inequality. And so the domain is x greater than or equal to minus 3 fourths. Now in this case, the function itself is a square root, and since the output is a square root, we can get all non-negative values. And so the range is going to be y greater than or equal to 0. Now the problem does ask us to enter our answer in interval notation. So for our domain, x greater than or equal to minus 3 fourths, well in interval notation, that's the interval that begins at minus 3 fourths, including it. So we'll use an opening square bracket with the negative 3 fourths. And the interval goes to infinity, which is never included, and so we'll use a closing parenthesis. So we'll type that in, and remember that for my open math, you use an OO to type in the infinity symbol. The range, y greater than or equal to 0, well that's going to be everything from 0 onto infinity. And since the range does include 0, we'll open with a square bracket, and because we never include infinity, we'll close with a parenthesis. And we'll type that in, and again we want to type OO to represent the infinity symbol. And again we check that what we've entered is what we want to enter, and since it is, we'll hit submit and get our score.