you must use substitution only
2006-11-07 03:32:54 · 8 answers · asked by Tempestt v 1 in Science & Mathematics ➔ Mathematics
if y=0
2x+4(0)=-8
2x+0=-8
x=-4
if x=0
2(0)+4y=-8
0+4y=-8
y=-2
If your doing co-ordinate geometery, two points on the line are (0,-2) and (-4,0)
2006-11-07 03:39:07 · answer #1 · answered by freetibetfighter 3 · 1⤊ 0⤋
with this you only have 2 options
x =1, y=-1
x=-1, y=1
unless you bring -8 to the other side and then its a long process.
2006-11-07 03:51:24 · answer #2 · answered by Anonymous · 0⤊ 0⤋
2x + 4y = -8
4y = -2x -8
*y = -1/2x - 2*
do same for x but both x and y =infinity
2006-11-07 03:52:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋
2x+4y=-8
2(x+2y)=-8
dividing by 2
(x+2y)=-4
x+2y+4=0
2y=-x-4
sub x=0,y=-2
x=1,y=-3/2
x=2 y=-1
x=4 y=0
2006-11-07 03:42:52 · answer #4 · answered by raj 7 · 0⤊ 0⤋
There are infinite answers. Just assume x to be any number and then y will be whatever makes the equation true.
2006-11-07 03:35:28 · answer #5 · answered by pcolaengr1 3 · 0⤊ 0⤋
Answer: - a linear line -
2006-11-07 04:01:04 · answer #6 · answered by Lie Ryan 6 · 0⤊ 0⤋
x=0
y=-2
among others....
2006-11-07 03:35:52 · answer #7 · answered by SPB 6 · 0⤊ 0⤋
x=( 0,2)
y= (2,0)
2006-11-07 03:43:25 · answer #8 · answered by Anonymous · 0⤊ 0⤋