Question

y=mx+b

so how does that work with x+ 2y=7?

Answer 1

solve for y
2y = 7 - x
y = (7 - x)/2

Answer 2

^ Correct:
y = -1/2(x) +7/2
Therefore, m = -1/2
b = 7/2

Answer 3

...
y = 7/2 - x/2
y = -x/2 - 7/2

Answer 4

did that help, help needed?

Answer 5

Oiler, it's 7/2, not -7/2

Answer 6

Yes, it's what we put for the equation, but we don't understand how to graph that and don't know how to use the online grapher we looked at

Answer 7

of course,
y = 7/2 - x/2
y = -x/2 + 7/2

Answer 8

Here's a way to graph the original form: ...

Answer 9

Ok, we graphed that line, but it's not intersecting with the other equation 3x+y
=6

Answer 10

put in zero for x,
0 + 2y = 7, y = 7/2, gives the point (0,3.5)
put in zero for y,
x + 0 = 7, x = 7, gives the point (7,0)
Real easy, without solving for y

Answer 11

For 3x+y =6
put in zero for x,
0 + y = 6, y = 6, gives the point (0,6)
put in zero for y,
3x + 0 = 6, x = 2, gives the point (2,0)
Real easy, without solving for y

Answer 12

I'm trying it out

Answer 13

You're getting a medal, it worked!

Answer 14

Nice job oiler :D

Answer 15

You too! Thanks so much.

Answer 16

Oiler are you still there?

Answer 17

2x+3y=11 (0, 11/3)
3x-2y=_16 (0,8) how do I graph 11/3?