graphing systems of equation
2006-11-29 05:57:25 · 6 answers · asked by n 1 in Science & Mathematics ➔ Mathematics
As simultaneous equations we will get
y = x......(1)
x + y = 4....(2)
Sub. (1) into (2)
-->
2x = 4
x = 2
y = 2.
Graphically, plot the y = x line, which is a diagonal line passing through the origin. Plot the line x + y = 4...or y = -x + 4, which is a straight line passing through the points (0,4) and (4,0). These two lines will intersect at (2,2).
2006-11-29 06:11:59 · answer #1 · answered by ludacrusher 4 · 0⤊ 0⤋
x = 2, y =2
2006-11-29 06:12:35 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋
Multiply x/6+y/4=7/2 by using 24, we get 4x+6y=80 4.................(eqn a million) Multiply 2x/3-y/6=7 by using 6, we get 4x-y=40 two....................(eqn 2) substract (eqn a million)by using (eqn 2), We get linear eqn in y, After fixing we get value of y as 6 and x as 12.
2016-10-13 08:59:04 · answer #3 · answered by Anonymous · 0⤊ 0⤋
y=x
x+y=4
x+x=4
2*x=4
x=2
y=2
2006-11-29 06:14:52 · answer #4 · answered by sergioqcostas 1 · 0⤊ 0⤋
y=x (i)
x+y=4 (ii)
sub (i) in (ii)
2x=4
x=2
y=x=2
2006-11-29 06:14:41 · answer #5 · answered by Ahmed h 2 · 0⤊ 0⤋
y= x
y= -x+4
y=2
x=2
2006-11-29 06:01:59 · answer #6 · answered by kt 1 · 0⤊ 0⤋