Answer
$x\ge4$.
See graph.
Work Step by Step
1. We can write $[4,\infty)$ as $x\ge4$.
2. See graph.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.