Which of the following graphs below represents the equation $x=3$?

• A.
• B.
• C.
• D.

Answer: (D)

Verified step by step guidance

1. Understand that the equation x = 3 represents a vertical line on the Cartesian plane.
2. In the equation x = 3, the x-coordinate is always 3, regardless of the y-coordinate.
3. A vertical line is parallel to the y-axis and crosses the x-axis at the point (3, 0).
4. Examine the provided graphs to identify which one is a vertical line.
5. Select the graph that shows a vertical line crossing the x-axis at x = 3.