Question

could some one please explain how to solve this problem graphically? 2x − y = 4,
5x − y = 13
i know i need to put it into y=mx+b form, but I am not sure if i did ti correct because i am not used to having a negative y. I got y=-2x-4 and y=-5x-13 is this correct and if so how would I graph it? please help graphing is such a weak point for me

Answer 1

Start by mulitplying both sides by -1
Then you don't have a -y

Answer 2

How is the 5x positive? and the 2x and 4 positive?
when I subtract them they become negative i thought

Answer 3

I am completely confused now

Answer 4

If you multiply both side of the equation by -1
then you just change all the signs before you start to move things around:
-2x + y = -4

Answer 5

oh ok I see that is how it becomes y=2x-4
and y=5x-13 is this correct?

Answer 6

But he's trying to put into this form: y = mx + b
So it won't help to move the y

Answer 7

im a she lol

Answer 8

please please help me get this. i am in the last of the last of this class my final is thursday I gotta get it

Answer 9

k ty

Answer 10

Omg I get it thank you so much