Question

What isthe x-coordinate of every point that lies on a vertical line through$P$?

Short answer

The $x$-coordinate of every point that lies on a vertical line through$P$is 3.

Step-by-step solution

Step 1. Define coordinate of a point.

Coordinate $\left(x,y\right)$ of a point is an ordered pair of numbers; that is, a number on the x-axis called an x-coordinate, and a number on the y-axis called a y-coordinate.

Step 2. Draw the graph.

Draw a vertical line at the given point $P$.

Step 3. Write x-coordinate of every point that lies on a vertical line through . 

For any point on the red line the-coordinate is always 3.

Hence, the x-coordinate of every point that lies on the vertical line through $P$is 3.