Question 206577: What is the basic method for graphing a linear equation>
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! What is the basic method for graphing a linear equation>
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Two methods are taught in the schools.
1st method:Plot two points and draw a line thru them.
Example:
y = 3x+4
If x = 3, y = 3*0+4 = 4, giving you point (3,4)
If x = -1, y = 3*-1+4 = 1, giving you point (-1,1)
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2nd method: Plot the y-intercept and apply the slope to get a 2nd point.
Example:
y = 3x+4
The slope is 3 and the y-intercept is 4
Put a point at (0,4)
Since the slope is 3/1, move your pencil 1 to the right and 3 up
to put a point at (1,7). Then draw the line thru the two points.
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Cheers,
Stan H.
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