Answer
View graph below:
Work Step by Step
You are given the inequality $y\lt3$.
The line would be dashed because it involves less than.
Shade the region below the line $y=3$ because that is where the points whose $y$-value is less than $3$.
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.