ENTERING INTERVAL ANSWERS For intervals of values, enter your answer using interval notation. Here are some examples of how interval notation relates to inequalities: With inequalities, we use "less than": < or "greater than": > to exclude the endpoint of the interval. With interval notation, we use use round parentheses, (or). With inequalities, we use "less than or equal to": \( \leq \) or "greater than or equal to": z to include the endpoint of the interval. With interval notation, we use use square brackets, [or ]. To combine two intervals, use \( U \) (an uppercase letter \( u \) ) for union: \( U \) Use oo (two lowercase letter o's) for infinity: \( \infty \) For example, to enter \( (-\infty,-2] \cup(3,6] \), you would type: \( (-\infty,-2] \cup(3,6] \) Try it now. Enter the interval equivalent to \( 27 \)