Choose the system of equations which matches the following graph:
x + 2y = –10
3x + y = 12
*********
x – 2y = –10
3x + y = 12
**********
x + 2y = –10
3x – y = 12
**********
x – 2y = –10
3x – y = 12
I will attach the graph for you.. Thank you

Question

Choose the system of equations which matches the following graph:
x + 2y = –10
3x + y = 12
*********		
x – 2y = –10
3x + y = 12
**********		
x + 2y = –10
3x – y = 12
**********		
x – 2y = –10
3x – y = 12
I will attach the graph for you.. Thank you

anonymous · Answer

attachment

amistre64 · Answer

hard to open a doc file

anonymous · Answer

lol

anonymous · Answer

|dw:1323792156913:dw|
it's something like this

amistre64 · Answer

well, different slopes would rule out the first and last options

anonymous · Answer

yes my graph looks like that but i have to choose from the options I gave in my question and I have no idea

amistre64 · Answer

ax + by = c

slope = -a/b  might prove useful

amistre64 · Answer

x – 2y = –10  slope = 1/2
3x + y = 12  slope = -3


x + 2y = –10  slope = -1/2
3x – y = 12    slope = 3

amistre64 · Answer

is the line going down hill from left to right steeper or flatter than the other?

anonymous · Answer

let me see

anonymous · Answer

from left to right it is flatter than the other one

amistre64 · Answer

flatter is good, and it it going down?|dw:1323792491468:dw|

anonymous · Answer

going down

amistre64 · Answer

then from a visual point of view; I would bet on the 3rd option.

we have different slopes; and the flatter one is downhill

anonymous · Answer

|dw:1323792557714:dw|

anonymous · Answer

it looks something like that.. sorry..

amistre64 · Answer

option 3 is still our best bet i believe

anonymous · Answer

thank you for your help

amistre64 · Answer

good luck ;)