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

• A.
• B.
• C.
• D.

Answer: (D)

Verified step by step guidance

1. Understand the equation \(x = 3\). This means that for every point on the graph, the x-coordinate is always 3, regardless of the y-coordinate.
2. Recognize that the graph of \(x = 3\) is a vertical line crossing the x-axis at 3.
3. Look at each graph and identify the line that is vertical and passes through the point where \(x = 3\) on the x-axis.
4. The first two graphs show lines that are slanted, so they do not represent \(x = 3\).
5. The third graph shows a horizontal line, which represents an equation like \(y = c\), not \(x = 3\). The fourth graph shows a vertical line, which matches the equation \(x = 3\).