I think m is called the slope but I forgot what be is called... but please help me with this problem?? x+2y<5. I've tried it over and over and I can't seem to get it right.
2007-04-22 03:07:37 · 5 answers · asked by ♥♥♥♥ 1 in Science & Mathematics ➔ Mathematics
x + 2y < 5 represents the portion of the space that lies beneath the line x + 2y - 5 =0
Slope for x+2y=5 is -1/2 and intercept is 5/2
2007-04-22 03:16:51 · answer #1 · answered by astrokid 4 · 2⤊ 0⤋
Why do you want to know the m and b values? If you want to put this inequality on a graph then it is easier to do it as it stands. The edge line is x + 2y = 5 so x = 0 gives y = 2.5 and
y = 0 gives x = 5. So plot (0,2.5) and (5,0) and put a line through them. Now choose any point not on the line (and the origin is the easiest) to see whether it agrees with the inequality, which it does, so it is all of that side of the line.
2007-04-22 11:04:45 · answer #2 · answered by mathsmanretired 7 · 1⤊ 0⤋
First, get y by itself. Subtract x from both sides, 2y<-x+5, then divide by 2. So, you have y<((-1/2)x+5/2). Now this is in the form y
2007-04-22 10:23:47
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answer #3
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answered by christianprogrammer2 4
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m is the slope and b is the y-intercept
2y<-x+5
y<-1/2x+5/2
2007-04-22 10:26:27 · answer #4 · answered by Anonymous · 0⤊ 1⤋
x + 2y < 5
x + 2y - x < - x + 5
2y < -x + 5
2y / 2 < - x/ 2 + 5/ 2
y = - 1/2x + 5/2
- - - - - -
m = - 1/2
b = 5
- - - - - - -s-
2007-04-22 11:20:04 · answer #5 · answered by SAMUEL D 7 · 2⤊ 0⤋