Question

What is the graph of the system y = -2x + 3 and 2x + 4y = -8?

Answer 1

http://i.imgur.com/uUGM1QW.png
@csscgirl

Answer 2

http://www.wolframalpha.com/input/?i=y%3D-2x%2B3+and+2x%2B4y%3D-8

Answer 3

Thank you zimmah but I would much rather have a more human answer (referring to explanations given too. :l)

Answer 4

all of them have the line that is in slope intercept form, so put 2x=4y=-8 into slope intercept form. this will make it easier to graph.

Answer 5

i meant 2x+4y=-8

Answer 6

to put it in slope intercept form, divide everything by 2, to get it simpler.

Answer 7

x+2y=-4 is what it is from there... so we subtract x from both sides to make the equation y=-x-4

Answer 8

i mean 2y=-x-4

Answer 9

divide everything by 2.

Answer 10

y=-1/2x-2

Answer 11

now we can eliminate the answers b and d, because they both have a line that has a positive slope.

Answer 12

it would be a, because of elimination,the y intercept in c is 2, when the equation's y intercept should be -2... in a, it shows that the line has a y intercept -2

Answer 13

and the slope is correct.

Answer 14

so your answer is A

Answer 15

^_^ message me or mention me if you have any other questions :D

Answer 16

I honestly thought it was C. :p Alright, thank you. I think I understand it a bit now.

Answer 17

Will do <3

Answer 18

ok :) thanks! :)