Question

Someone please help me
Which of the following equations is written in slope-intercept form?
Choose one answer.
a. 2x + 3y = 6
b. x = -three halvesy + 3
c. 3y = -2x + 6
d. y = -two thirdsx + 2

Answer 1

I don't understand this

Answer 2

a quick google search tells us that slope intercept form is "y = mx + b" do you see something that matches that?

Answer 3

@undeadknight26 can you help me here?

Answer 4

@jchick slope intercept form is:

y = mx + b

Answer 5

Yes I got that but I don't really understand

Answer 6

I am not very good at this

Answer 7

ok do you want to understand? or just want the answer?

Answer 8

I want to understand it

Answer 9

I don't just want the answer I need to learn it for future reference

Answer 10

However I tried to come up with an answer do you want to see it?

Answer 11

I think the answer is A

Answer 12

the answer is not A

Answer 13

Ok

Answer 14

Can you help me to understand then?

Answer 15

ok i will tell you something which will basically give you the answer, but only if you promise to stay and learn the whole thing, deal? it will take 15 min or so

Answer 16

Ok that is fine thanks btw

Answer 17

I really want to understand this

Answer 18

ok so again slope intercept form is y = mx + b

Answer 19

so looking at your possible answers, do you see something that has a "y =" on the left side? just like the slope intercept form?

Answer 20

Yes I just saw that

Answer 21

Ok so still how do you figure it out if it was harder?

Answer 22

Because I don't think that they will all be like that

Answer 23

ok so this is the equation for a line, y = mx + b

Answer 24

Ok

Answer 25

the y is our output, and the x is our input, the m is our slope, and the b is our y intercept, we can go over those in detail if you like

Answer 26

Ok please do

Answer 27

thanks for helping me btw

Answer 28

you are welcome

Answer 29

ok so let me draw the line first, or can you draw it?

Answer 30

I am not sure how to

Answer 31

I am still new to this site

Answer 32

you click on the blue draw button

Answer 33

Oh ok

Answer 34

How do you want the line drawn?

Answer 35

Like where?

Answer 36

ok good, so lets start with the information we have, so we have y = -2/3x + 2, so can you tell me a point i can plot right away just by looking at that?

Answer 37

@jchick , i will tell you a point i can plot right away looking at y = -2/3x + 2, is (0, 2)

Answer 38

Sorry i misunderstood what you were asking

Answer 39

y = -2/3x + 2 match that to y = mx + b

y = y

m = -2/3

x = x

b = 2

Answer 40

do you see how those match up?

Answer 41

Yes I do now

Answer 42

ok pefect, so what is the value of b for our equation?

Answer 43

2 right?

Answer 44

yep b is 2, pefect, b is called the y intercept, so 2 is our y-intercept, that means that the line intercepts the y axis when y = 2 ,

Answer 45

and we know the y axis is when x = 0, so we have the point (0,2), follow me?

Answer 46

Ok awesome I get it now!!