Question

Solve the system by graphing. (Equation and Answer Choices Are In Comments!)

Answer 1

First thing, Solve both equations for y.

Answer 2

okay let me do it hold on

Answer 3

okay so y=-3x+10 and y=x+4?

Answer 4

-3x - y = -10
4x - 4y = 8

-y = 3x - 10

-4y = -4x + 8
y = x - 2

It is -y = 3x - 10 and y = x - 2. Do you understand?

Answer 5

yes

Answer 6

Now that you have the eq, can you graph them?

Answer 7

Okay. So now find the graphs that have y-intercepts of -10 and -2 and slopes of 3 and 1 (respectively).

Answer 8

@a1234 second eq is correct

Answer 9

no I don't know how to graph.

Answer 10

ok, so pick an x any x, and what do you get for y?

Answer 11

I suggest starting with zero

Answer 12

Then you really need to learn how to graph equations before proceeding.

Answer 13

See if this helps:

http://www.math.com/school/subject2/lessons/S2U4L3GL.html

Answer 14

is it the last one

Answer 15

Can you tell me how you got that response?

Answer 16

We are not going to tell you if you are correct until you explain, so that we see how you did it

Answer 17

Because of 3,1 so it must be then 1,3 the third one?

Answer 18

wait wait wait, how did you get your (3,1) or (1,3)?

Answer 19

They're not the same.

Answer 20

x and y

Answer 21

yea, they are not quite the same, try looking at the y-intercepts

Answer 22

I'm so confused >.<

Answer 23

it's ok, what are your y- intercepts to start with?

Answer 24

I don't remember >.< gahh my head hurts

Answer 25

Okay...so when I showed you my work, I said that one equation is -y = 3x - 10. This is the same as y = -3x + 10, what you said. So, in this equation:

-3-----> slope
+ 10-----> y-intercept

The next equation, y = x - 2:

1----> slope
-2---> y-intercept

Do you get this?

Answer 26

@MotionlessInWhite1996

Answer 27

yes okay im starting to understand again

Answer 28

Do you know how to find y-intercepts on graphs?

Answer 29

no

Answer 30

@a1234 for you

Answer 31

okay

Answer 32

Alright, let's start from there. Start at (0,0), the point at the center of the graph.

Answer 33

From there:

Go down two points to get to -2. Now, go up 1 point and right 1 point. This will be one point that is graphed. Continue this process of going up and right to get the next couple of points.

Answer 34

so would it be -1,3 or 3,-1?

Answer 35

What I said what just for one equation. You have to do it similarly for the other one.

Go up 10 from 0, and then come down 3, and right 1. Continue this. What do you get? What do you think now, (3,1) or (1,3)?

Answer 36

1,3?

Answer 37

not quite, think about this, we are searching for the point where line 1 = line 2.

Answer 38

ohhhh so it would be 3, -1?? the second one??

Answer 39

no, let me try a different approach. Do you know what the y- intercepts are?

Answer 40

which graph has the correct y-intercepts?

Answer 41

@MotionlessInWhite1996 I really suggest you look at the website I posted above. This discussion doesn't seem to be going in any direction.