anonymous
  • anonymous
Graph the inequality y > −4x
Algebra
schrodinger
  • schrodinger
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anonymous
  • anonymous
Do you know how to graph y=-4x?
anonymous
  • anonymous
No, thats why I asked...
anonymous
  • anonymous
Not y>-4x but y=-4x

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anonymous
  • anonymous
eh.. I don't know how to do either. Do you mind drawing it for me?
anonymous
  • anonymous
1) I can't do it for you. There are limits to the help we can give. The best I can do is show you. The easiest way is plug and chug. If you can find two points for an equation you can draw it by connecting the two points with a ruler and drawing a line. For y=-4x what is y for x=0 and x=-1? what is y=-4(0) ? y=-4(-1)?
anonymous
  • anonymous
y=0 and y=4
anonymous
  • anonymous
are these the 2 points?
anonymous
  • anonymous
These are the y values for your two points. (x1,y1) (x2,y2) You chose x1= 0 and x2=-1 and found y1= 0 and y2 = +4 so your points are (0,0) and (-1,4) so on graph paper or your own sketched graph you can plot (0,0) and (-1,4) draw a line between them.
anonymous
  • anonymous
ok.. would I have to shade anything on the graph.. or make the line that passes through the points dashed?
anonymous
  • anonymous
Yes. When it says y> -4x it is implying that all the y values above y=-4x. So that would mean you would dash the line, to show you are not including the line in the graph, and then shade everything ABOVE the dashed line.
anonymous
  • anonymous
I thought so... glad I checked.
anonymous
  • anonymous
So for (0,0) at x=0 all the y values above 0 should be shaded, but not 0.
anonymous
  • anonymous
Gotcha. Thank you!

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