SOLUTION: How do I graph y= -2x + 2 over a range -3 to 3?

Question 571698: How do I graph y= -2x + 2 over a range -3 to 3?
Found 2 solutions by KMST, Alan3354:
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
is a linear equation. The graphs of linear equations are straight lines. Since two points determine a line, all you need to do is plot two points and connect them. You may want to chose points that will be easy to calculate and will look good on the graph.
You could chose the points with and
For , , which gives you the point (0,2).
For , , which gives you the point (3,-4).
You could also calculate the point for , to help you figure out the scale for your graph.
For , , which gives you the point (-3,8).

Since your equation was in the slope intercept form, you could use the slope and intercept to graph the line. The in the equation is the y-intercept, telling you that the graph crosses the y axis at y=2, giving you point (0,2). The coefficient of x in the equation is the slope telling you that for every increase of 1 in x, y decreases by 2. That would allow you to find points (1,0), (2,-2), and (3,-4) just by moving one unit to the right and two units down from point to point in the graph (no calculations needed).
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
How do I graph y= -2x + 2 over a range -3 to 3?
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It's a straight line, so you need 2 points.
Use x = -3 and x = 3, since that the range.
Use x = 3, solve for y, plot the point.
Do the same for x = -3
Draw a line thru the points.

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