Question

WHAT VALUE OF K WOULD MAKE THE GRAPH OF 6X+2Y=K AND THE GRAPH OF 4X+KY=3 PARALLEL

Answer 1

4/3?

Answer 2

Check it.

Answer 3

How do I Check it ?
do I plug something in?

Answer 4

OK, let me check it, then I will explain.

Answer 5

thank you and just let me know.

Answer 6

Ok, it seems right.

Answer 7

I think you nailed it estudier

Answer 8

Do you know how to get the slope of a line?

Answer 9

no I don't I was just transferred into a new school and didnt have much time to catch up! that's why I need to know like how did you get 4/3?

so if i see it again I'll know what to do.

Answer 10

OK, if u have a line in the form ax + by +c = 0 (c can be on the other side of =)

Then the gradient or slope is -a/b, follow me?

Answer 11

OKAY IM WITH YOU SO FAR !

Answer 12

For the lines to be parallel, the slopes must be the same.

So put slope 1 = slope 2 and solve for K.

Answer 13

SO WOULD IT LOOK LIKE THS 6X+2Y=5+4X+KY+3?
STILL A LITTLE CONFUSED

Answer 14

I MEANT =3

Answer 15

The slope is -a/b, u said u understood.

What is the slope of the first line?

Answer 16

THE EQUATION IS 6X+2Y=5 SO WOULD THE SLOPE BE 6

Answer 17

ax + by = c
6x + 2y = 5

Slope is -a/b, compare the two and tell me the slope.

Answer 18

So the a is 6....yes?

Answer 19

YEAH!

Answer 20

and the b?

Answer 21

2

Answer 22

Right.

So -a/b is?

Answer 23

-6/2

Answer 24

IS THAT RIGHT

Answer 25

Ok. -3.

Now do the same for the other line.

Answer 26

OKAY HOLD ON !

Answer 27

THE SECOND ONE LOOK LIKE THIS 4X+KY=3

SO 4 WOULD BE A AND SINCE IT ISNT A VALUE FOR KY WOULD IT BE 0 OR 1

Answer 28

It is a value, the value is K.

Answer 29

So the slope is..?

Answer 30

SO THE SLOPE IS K....RIGHT?

Answer 31

Do it exactly the same way we did the first one.

Answer 32

a is...?

Answer 33

4 AND B IS K SO WOULD IT BE -4/3 K

Answer 34

No....-4/K

Answer 35

OKAY THANKS ! I APPRECIATE IT !

Answer 36

Not finished yet.

Answer 37

OKAY WELL LETS FINISH!

Answer 38

You have calculated slope 1 as -3 and slope 2 as -4/K.

For the lines to be // the 2 slopes must be equal so -3 = -4/K.

So what's K?

Answer 39

SO WHAT DO I PUT IN THE CALCULATOR?

Answer 40

U don't need a calculator to do that!

Answer 41

SO DO I DIVIDE ON BOTH SIDES?

Answer 42

Multiply both sides by K.

Answer 43

OKAY HOLD ON

Answer 44

I think u have a lot of work to do to catch up, this last part is very simple math.

Answer 45

-3 = -4/K Multiply by K


-3K = -4 Divide by -3

K = -4/-3 = 4/3.

Answer 46

Which is the answer to the question.

Answer 47

Good job estudier

Answer 48

Thanks!:-)

Answer 49

Good luck with your studies Bhen--

Answer 50

THANKS SO MUCH I JUST HAD TO WRITE DOWN EVERYTHING STEP BY STEP SO I CAN KNOW NEXT TIME ..YOU ARE VERY HELPFUL AND I HOPE TO GET HELP FROM U IN THE NEAR FUTURE!!