anonymous
  • anonymous
who wanna help me plot these x+yor equal to 0 y>or equal to 0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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welshfella
  • welshfella
for the first one plot the graph of x + y = 12 can you do that?
welshfella
  • welshfella
it is easy note that when x = 0 y =12 and when y = 0 x = 12 so plot the point (0,12) and (12,0) and join them up It well be a straight line.
welshfella
  • welshfella
the for x + y <= 12 shade the area below the line

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anonymous
  • anonymous
sorry i still dont understand its suppose to \[y=\le2x+3\]
anonymous
  • anonymous
but is the plot 0,12
welshfella
  • welshfella
i described is the plot of x + y <= 12
anonymous
  • anonymous
no \[y=\le2x+3\]
welshfella
  • welshfella
plot the line 2x + 3 first plot 3 points - they should be in a straight line if youhave done them correctly one point would be when x = 0:- y = 2(0) + 3 = 3 so this point will be (0,3) plot 2 more
anonymous
  • anonymous
what about this one \[y \le2x+3\]
welshfella
  • welshfella
this one will be the areas below the the line y = 2x + 3 - shade it in.
welshfella
  • welshfella
it will look something like this:- |dw:1434652208765:dw|
anonymous
  • anonymous
lol ok but what's the plot it's hard for me to make plots without numbres on the graph
welshfella
  • welshfella
well you cant plot points accurately without numbers on the graph. Haven't you got graph paper?
anonymous
  • anonymous
|dw:1434652783850:dw|
welshfella
  • welshfella
???? what does 510 mean?
anonymous
  • anonymous
5,0
welshfella
  • welshfella
No 5,0 is not a point on the line but it is a point in the shaded area
welshfella
  • welshfella
|dw:1434652672135:dw|
welshfella
  • welshfella
thats the point 90.3) where the line cuts the y-axis
welshfella
  • welshfella
*(0,3)
anonymous
  • anonymous
i thought the other one was 0,3 or is that for both of them
welshfella
  • welshfella
another point would be when x = 1 y = 2(1) + 3 = 5
welshfella
  • welshfella
@dianolove - sorry I can't stay any longer . I've got to go right now.
anonymous
  • anonymous
it's ok ttyl

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