Question

Solve the following system using the graphing method:

y = -x + 2
y = x + 4

Answer 1

@aum

Answer 2

@IMStuck PICS ATTATCHED

Answer 3

@zaibali.qasmi

Answer 4

I'm here. sorry it took so long.

Answer 5

its ok

Answer 6

the solution to this system is where on the graph the lines cross each other. So you need to decide which graph depicts your given lines. Do you know how to determine a graph from an equation in the form y = mx + b?

Answer 7

not really I have pics attathed by the way

Answer 8

it's the last graph on pic_21.jpg

Answer 9

not the one you just attached. Its the other one, the second graph on that second page.

Answer 10

ok thank :)

Answer 11

how about this one

Answer 12

@IMStuck

Answer 13

is the system
y = -4x + 1 and
-12x + 3y = 3

Answer 14

no y-4x+1
-12x+3y-3

Answer 15

oh that changes everything!

Answer 16

lol

Answer 17

There are no equal signs in those!!!???

Answer 18

none

Answer 19

give me a sec then, ok?

Answer 20

ok

Answer 21

in my experience you have to have a y = something line in order to graph. From what I can tell about those lines is that it is the second choice down on the image you posted.

Answer 22

b?

Answer 23

Without equal signs, there are no equations.

Answer 24

is there a graphingcalculator I can use

Answer 25

It is a small print but I think the equations are:
y = 4x + 1 (not y minus 4x but y equals 4x + 1)
-12x + 3y = 3 (not minus 3 but equal to 3)

Answer 26

y = 2x + 1
-4x + 2y = 4 would this be inconsistent?

Answer 27

y = 4x + 1
-12x + 3y = 3

Take the second equation and solve for y.

-12x + 3y = 3
add 12x
3y = 12x + 3
divide by 3
y = 4x + 1
The second equation is identical to the first equation!
Since both equations are the same they are consistent and dependent.
In the graph the two equations will show up as one single line with a positive slope of 4.

Answer 28

ok so both are consistent

Answer 29

consistent
and
dependent

Answer 30

does it look like this @aum

Answer 31

look like what?

Answer 32

@aum

Answer 33

?????

Answer 34

No. Both equations are the same: y = 4x + 1.
So if you plot them there will be just one line.
And slope m = 4. So it should have a positive slope.

Answer 35

all of my choices have two lines

Answer 36

I am answering this one: http://assets.openstudy.com/updates/attachments/53c5780ee4b00f624a931885-alyygirl-1405451313934-photo1.jpg

Answer 37

y = 2x + 1
-4x + 2y = 4

Answer 38

for these

Answer 39

so that one is C?

Answer 40

Yes.

Answer 41

y = 2x + 1
-4x + 2y = 4

Follow the same procedure as before.
Take the second equation and solve for y. What do you get?

Answer 42

those ones actually did have equal signs

Answer 43

no solution

Answer 44

for this one?y = -x + 2
y = x + 4

Answer 45

y = 2x + 1
-4x + 2y = 4

Answer 46

They are two different lines. Are they parallel?

Answer 47

this one sorry its hard without the actual graph

Answer 48

no not parallel

Answer 49

ok which one are we on

Answer 50

sorry

Answer 51

y = -x + 2
y = x + 4
Are these lines parallel? (that is, are their slopes the same?)

Answer 52

have you get it..?