Draw on graph paper a table of values by plugging in x values into your equation. You only need two points on the graph to be able to draw a line representing the linear equation. For example, if your line is y = 2x then your two points might be:
y = 2(1) = 2, giving you (1,2) as a coordinate
and
y = 2(10) =20, giving you (10,20) as a coordinate.
How to Solve & Graph Linear Equations
A linear equation produces a straight line in a graph. The general formula for a linear equation is y = mx + b, where m stands for the slope of the line (which can be positive or negative) and b stands for the point that the line crosses the yaxis (the y intercept). Once you have graphed the equation, you can determine for any value at the xaxis the corresponding value of the yaxis or vice versa.
Things You'll Need
 Graph paper
 Pencil
 Ruler
Instructions


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2
Draw an XY axis (sometimes called a Cartesian plane) on your graph paper. The XY axis looks like a large cross. The center of the cross (the "origin") should be in the center of your graph paper. Label this point "0."


3
Label your X axis. Start 10 squares to the left of the origin and move to the right, labeling each square with a number from 10 to 10 (0 was already labeled in Step 2).

4
Label your Y axis. Start 10 squares above the origin and move down, labeling each square with a number from 10 to 10 (0 was already labeled in Step 2).

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Graph your coordinate points. The coordinate point (1,10) represents (x,y) on the graph. In other words, find "1" on the x axis then trace upward with your finger to y = 10. Label this point (1,10). Use the same technique to label (10,20).

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Connect the two coordinate points with a straight line using your ruler. This is your linear graph. You can use it to solve the equation for any value of X: start at the correct X value on the number line (for example, x = 4) then trace upward to the linear graph. Stop where your finger hits the graph then read the Y value for that location.

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Tips & Warnings
 A standard graph in math is a graph that goes from x = 10 to x = 10 and y = 10 to y = 10 on the number line, so that's why plugging in x=1 and x=10 to your equation is a good idea. If you have graph containing a wider range of coordinates (for example, up to 100 on the number line), you'll get a more accurate graph by making sure your points are spread apart (you might choose 1 and 100 in that case).