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 given: \(x = 3\). This means that for every point on the graph, the x-coordinate is always 3, regardless of the y-coordinate.
2. Recall that the graph of an equation like \(x = a\) (where \(a\) is a constant) is a vertical line crossing the x-axis at \(x = a\).
3. Look at each graph and identify the line's orientation and position relative to the x-axis.
4. The first three graphs show lines that are either diagonal or horizontal, which do not represent \(x = 3\) because the x-value changes or is not fixed at 3.
5. The fourth graph shows a vertical line crossing the x-axis at \(x = 3\), which matches the equation \(x = 3\).