Question

How do you get x + 2y + 4 = 0 into y=mx+b for a graph ??? then finding the 3 points

Answer 1

Ok so solve for y

Answer 2

so subtract x from both sides/?

Answer 3

yes

Answer 4

so 2y + 4 = 1?

Answer 5

what happened to your x...?

Answer 6

2y - x + 4 = -1

Answer 7

I don't understand what you're doing there

Answer 8

where did you get -1 from?

Answer 9

get y on its own

Answer 10

0-1 = -1 isnt it?

Answer 11

Isolate y

Answer 12

\[x+2y+4 = 0\]

\[2y+4 = -x\]

\[2y = -x -4\]

\[y = \frac{ -x-4 }{ 2 }\]

Answer 13

No you're doing it wrong

Answer 14

x + 2y + 4 = 0 (subtract 4 from both sides)
x + 2y + 4 - 4 = 0 - 4 (combine lime terms)
x + 2y = -4 (now we want to subtract x from both sides)
x + 2y - x = -x - 4 (combine like terms)
2y = -x - 4 (now divide both sides by 2)
2y/2 = -x/2 - 4/2
y = -1/2 - 2

Answer 15

batman got it right...I just went a step further