SOLUTION: how do i use a table of values to graph the equation y =

SOLUTION: how do i use a table of values to graph the equation y = - x + 4

Question 243059: how do i use a table of values to graph the equation y = - x + 4
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
You know this is the equation for straight line, so you need only 2 points to define the line.
A good table of values will show the values of y for various values of x (and vice versa)
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Two good starting points are to set x=0 and find the value of y. In this case, when x=0, y=4. Put a dot at (0,4) on your graph.
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Another good starting point is to set y=0. In this case, x=4. So put a dot at (4,0).
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Draw a single straight line that crosses these two dots and extends beyond them in both directions.
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You can try some other values to check your work.
Say, put x=1, then y=3. Or x=-2, then y=6.
You can put these into your table of values, too, if you want.
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Here's a graph to show you what it ought to look like.

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