Q:

# How do you graph X=3?

A:

Graphing x = 3 is a matter of drawing a vertical line on the Cartesian plane. For any equation x = n, where n is any real number, the resulting graph is a vertical line crossing the x-axis at the value of n. To graph the given equation, draw the Cartesian plane, plot the coordinates of the graph, and draw a line through it.

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1. Draw out the Cartesian plane

The Cartesian plane consists of the x-axis and y-axis. The x-axis is the horizontal axis, and the y-axis is the vertical axis. The point where these axes cross each other is the origin with the coordinate (0,0). Ensure that there are enough points on the axis to accommodate the equation to be graphed. In the case of x = 3, have a range of -5 <= x <= 5, -5 <= y <= 5.

2. Plot the coordinates of the graph

Since a vertical line has the same x coordinate for each point, it is simply a matter of picking a few y coordinates. Some valid coordinates are (3,2), (3,0) and (3, -3).

3. Draw a line through the points

Sketch a line through the points that are plotted on the graph, and draw arrows on the ends of the line to indicate that the equation x = 3 has a range that includes all real numbers.

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