Domain of rational radical functions

The video tutorial covers the importance of fraction bars and the restriction that denominators cannot be zero. It explains how to factor and solve equations to find undefined values, and how to graph these values. Additionally, it discusses handling radicals in numerators and determining domain intervals.

Why is it important to ensure the denominator of a fraction is not zero?

• It makes the fraction equal to zero.

• It changes the fraction to a whole number.

• It makes the fraction undefined.

• It simplifies the fraction.

What is the result of factoring the expression X - 3 and X - 2?

• X equals -3 and X equals -2

• X equals 3 and X equals 2

• X equals 0 and X equals 1

• X equals 5 and X equals 6

What happens to the graph at the points where the values are undefined?

• The graph has breaks or holes.

• The graph remains continuous.

• The graph becomes a straight line.

• The graph forms a loop.

When dealing with a radical expression, what should you set it to?

• Equal to zero

• Less than zero

• Greater than or equal to zero

• Greater than zero

How do you determine the domain for each interval when dealing with radicals?

• By setting the expression greater than zero

• By setting the expression equal to zero

• By setting the expression less than zero

• By setting the expression greater than or equal to zero