2006-11-03 13:42:43 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Yes more info would be great!
2006-11-03 13:53:57 · update #1
x= -3
y=2
2006-11-03 13:46:51 · answer #1 · answered by Save the Envirnment 1 · 1⤊ 0⤋
-2x + 3y = 12
=> y = (12 + 2x) / 3
the roots of equation is D = {x is a real number ; y = (12 + 2x) /3} ( sorry I dont know how to type those mathematical symbols )
it means that this equation have x is any real number, and y = (12 + 2x ) /3 as its roots
the number of its roots is uncountable (unlimited)
root here means any pair of (x,y), neither x nor y
Sorry. I can't use English very well in this field
2006-11-03 22:01:07 · answer #2 · answered by James Chan 4 · 1⤊ 0⤋
Theres looaaddsaa ways to get twelve that.
x=0 and y= 4
y=0 and x = -6
x=-3 and y= 2
x=1 and y= 14/3
x=-9/2 and y=1
These are just a few of the endless ways to get twelve that way.
I think that question should've been set with another equation, and ask what values of x and y satisfy both equations. Then we would do simultaneous equations.
2006-11-03 22:04:07 · answer #3 · answered by Inviz 2 · 1⤊ 0⤋
The answer is the set of points lying on the line
-2x+3y=12
y=(12+2x)/3
where x belongs to R
2006-11-04 06:27:39 · answer #4 · answered by sushant 3 · 1⤊ 0⤋
Put the equation in slope-intercept form:
y=mx+b
3y=2x+12
y=2/3x+4
Put zero in the place of x:
y=2/3(0)+4
y=4
(0,4)
Put zero in the place of y:
0=2/3x+4
2/3x=-4
x=-6
(-6,0)
Check:
-2(0)+3(4)=12
12=12
-2(-6)+3(0)=12
12=12
I hope this helps!
2006-11-04 00:37:45 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Cant be solved.Both x and y are unknowns.Unless it is stated that x=y,or x is a a certain number of times bigger or smaller then y.
2006-11-03 21:59:42 · answer #6 · answered by Anonymous · 0⤊ 0⤋
y = 4 + 6x
2006-11-03 22:16:33 · answer #7 · answered by teacher rainier 1 · 0⤊ 1⤋
need more info
2006-11-03 21:49:57 · answer #8 · answered by VanessaM 3 · 0⤊ 0⤋