2007-04-13 12:36:03 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
x = 0
y intercept
3x - 4y < 12
3(0) - 4y = 12
0 - 4y < 12
- 4y / - 4 > 12 / - 4
y > - 12 / 4
y > - 3
When x = 0, y = - 3
(0, - 3)
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y = 0
x intercept
3x - 4y < 12
3x - 4(0) < 12
3x - 0 < 12
3x < 12
3x / 3 < 12 / 3
x < 12 / 3
x < 4
When y = 0, x = 4
(4, 0)
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2007-04-13 13:07:00 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
y = mx + b
3x - 4y < 12
-4y < -3x + 12
y < 3/4x - 3
3/4 is the slope, while -3 is the y-intercept. I think solving this is the same as an equation since this is an inequality.
On the graph, you should mark -3 on the y axis, and go right 3 steps, and after that go up 4. Trace the line and since y is less than this expression, shade the area under the line.
I hope I get this right, lol.
2007-04-13 19:55:51 · answer #2 · answered by FlipThePage 2 · 0⤊ 0⤋
First solve for y to get 4y >3x-12
This becomes y > 3/4x-3
Graph this line, but make it a dashed line and shade everything above it
2007-04-13 19:40:46 · answer #3 · answered by bruinfan 7 · 1⤊ 0⤋
it's ok.you can change this function to this kind:3/4x-3
2007-04-13 19:46:33
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answer #4
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answered by tuanpro_itman 1
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