Question

write an equation of a line in slope intercept form going through the points (- 2, 0) and (4, - 3). Show your work

Answer 1

given a line passes through (x1, y1) and (x2, y2)
then slope(m) = y2-y1/(x2-x1)

and eq of line is
y-y1 = m (x - x1)
or
y-y2 = m(x - x2)

Answer 2

i dont know how to do any of this v~v

Answer 3

v~v ?

Answer 4

its a face

Answer 5

then what have you studied till now about lines ?

Answer 6

first time.. no idea..

Answer 7

then maybe you should refer to a standard text and get to know various type of equation of lines

Answer 8

idk wat your talkn about

Answer 9

i mean first go and read some material about lines and then you will have better understanding and you will be able to solve this problem

Answer 10

i only have 12 days... i dont have time...

Answer 11

you have it will only take about 1-2 hrs

Answer 12

im only here till 1:00 and i have other problems to do as well

Answer 13

then read my 1st comment/post
it`s very clear if you follow it step by step

Answer 14

ok then read my first comment and tell me the value of m you get ?

Answer 15

thts just it i dont know how... no matter how clear it shows

Answer 16

(-2, 0) = (x1, y1)
(4, -3) = (x2, y2)
now tell me x1- x2
and y1- y2

Answer 17

ik at x's and the y's are i just dont know how to work it out

Answer 18

(-2, 0) = x1, y1 means
x1 is -2 and y1 = 0

Answer 19

yes ik tht part i jus dont know how to work it out

Answer 20

Well first off because you have 2 points, you need to find your slope. This will be your m.

y2-y1/x2-x1

AND then you only have to use one set of ordered pairs to plug into the equation of y-y1=m(x-x1) Whatever ordered pair you choose will be your x1 and y1.

Let me know if you need me to show you how to do all of this. I would be more than happy to teach you.

Answer 21

First we need to find the slope(m)
m = (y2 - y1( / (x2 - x1)
y2 = -3, y1 = 0
x2 = 4, x1 = -2
now lets sub our info into the formula
m = (-3 - 0) / (4 - (-2)
can you finish ?

Answer 22

whats -3 - 0 and what 4 -(-2) ???

Answer 23

-3 and 6

Answer 24

the formula would make it -3/6 which equals -1/2
-1/2 is the slope.
Now we will use y - y1 = m(x - x1)
m = -1/2
as for x1 and y1 , you can pick either of your points....I will pick (-2,0)
so x1 = -2and y1 = 0
now sub your info in the formula..
y - y1 = m(x - x1)
y - 0 = -1/2(x - (-2)
can you do this ? First distribute the -1/2 through the parenthesis.

Answer 25

Let me rephrase that...do what needs to be done inside the parenthesis, then distribute through the parenthesis.

Answer 26

you haven't gotten to the answer yet.....

Answer 27

sorry i was readn it n tryn to understand it lol sowwy

Answer 28

y - 0 = -1/2(x - (-2)
can you do this ?

Answer 29

if you told me how lol

Answer 30

look inside the parenthesis.....(x -(-2)....what does -(-2) equal ?

Answer 31

im not the sharpest knife in the crayon box....:/

Answer 32

y - 0 = -1/2(x - (-2)
y = 0 - 1/2(x + 2) now distribute
y = 0 - 1/2x - 1
are you with me so far ?

Answer 33

oops....I should be putting y - 0 not y = 0...sorry about that

Answer 34

@MAYSTEPH .....lets finish this

Answer 35

Let me know when your ready

Answer 36

ok idk

Answer 37

The equation is right in front of you. You can do it.

Answer 38

how :(

Answer 39

ok...I will finish because I have to go

y - 0 = -1/2x - 1
y = -1/2x - 1 <--your equation

Answer 40

do you have any questions ?

Answer 41

not if you gotta go lol

Answer 42

I have a few minutes.....do you have any questions ?

Answer 43

You really need to learn this...it is not really that hard if you put a little effort into it...you do not have to be a math whiz to do this

Answer 44

lol aloooot but idk how to ask lol

Answer 45

I can solve these problems but I am not good at graphing...so if they are graphing questions, you will need to ask someone else

Answer 46

just get the formula's and sub in your info....and solve. I have to go now....I wish you the best of luck :) Have a nice day

Answer 47

thankyouuuuu