Question

Determine the standard form of the equation of the line that passes through (2, 7) and (-6, 0).

Answer 1

Hold on. I'm writing it down.

Answer 2

alright

Answer 3

Gee, if I had the slope form equation I could solve this but I'm not sure......is there any more to this problem?

Answer 4

no

Answer 5

OK, do you know how to put this into slope format?

Answer 6

yea

Answer 7

OK, what is it? And if you don't know I'm looking in my math book. :)

Answer 8

(y2 - y1) / (x2 - x1)
(0-7) / (6 - 2)

Answer 9

that was the first step, hopefully when were done you will know how to do this. :)

Answer 10

-7 / 4 = Slope

Answer 11

\[y-y1=\frac{ y2-y1 }{ x2-x1 }\left( x-x1 \right)\]
(x1,y1)=(2,7)
( x2,y2 )=( -6,0 )
now you can try

Answer 12

I'm working on this step by step so bear with me. :)

Answer 13

what is B (where does this cross over the Y axis?)

Answer 14

idk im lost now

Answer 15

OK, when we draw the line between these 2 points on a graph where does the Line cross the Y axis, the vertical line?

Answer 16

i dont know

Answer 17

Do you have a graph? if so draw the two points and then tell me what NUMBER on the Y AXIS the line crosses through.

Answer 18

I dont have a graph

Answer 19

I'll attach it.

Answer 20

It crosses the Y axis at the 5

Answer 21

So with the slope form equation of Y = mx + b, we now have

Y = -7/4 + 5

Answer 22

Get it?

Answer 23

yeah i got the slope intercept form part of that i dont get how to get standard form

Answer 24

OK, I'll show you how to change them. )

Answer 25

Now we since Y is a positive we'll subtract it from both sides:

y =-7/4 + 5
---- -----
-y -y

Answer 26

Remember that we can NOT subtract y from 5 because they are NOT like terms!
Also remember that Y is a negative!
This will give us:

-7/4 = -y + 5

Answer 27

Follow so far?

Answer 28

kinda

Answer 29

OK either of you two other guys want to help?? Apparently I'm not a good teacher. :)

Answer 30

no im just dumb lol

Answer 31

That's Ok, I just did this lesson last night and my Dad, Math teacher, had to help me. Let me guess FLVS?

Answer 32

Let me ask a friend for help, cause I'll be honest I'm kinda lost right now :)

Answer 33

@thomaster

Answer 34

thats fine thank you

Answer 35

your welcome, I don't want to tell you the wrong thing.

Answer 36

@aaronq

Answer 37

let's hope one of them answers :)

Answer 38

hopefully!

Answer 39

Helpme100, I see you're here, want to help?

Answer 40

Hey this might help,

http://answers.yahoo.com/question/index?qid=20090302235850AA97pje

Answer 41

that might help but I gotta go! Good Lusk!!! ;)