Question

Find the slope intercept equation of the line segment that passes through (1,3) and (3,-3)

Answer 1

first find the gradient between the 2 p0ints...
then just substitute to general linear line equation...

Answer 2

I need help

Answer 3

ok...
first u know right the formula how to find the gradient between 2 points...???
that is :
\[m = \frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]

and then by substituting one of the coordinate of the p0int to the general linear line equation .
that is

\[y - y _{1}= m(x-x _{1})\]

where your \[y _{1} and x _{1} \] is your coordinates that you want to substitute

Answer 4

@oheneba do you get it...???

Answer 5

ok

Answer 6

@Eda2012 so m=
Y₂ -y₁/ X₂ -X₁
=-3

Answer 7

@oheneba yes...ok u got it right...

Answer 8

@Eda2012 where do I go from here?

Answer 9

then u substitute one of the coordinate of the point to the general formula...

Answer 10

where
\[y-y _{1} = m(x-x _{1})\]

your m = -3
your \[x _{1}\] and \[y_{1}\]
is your coordinate of the point.

Answer 11

so y-3=-3(x-1)?

Answer 12

@Eda2012 so y-3=-3(x-1)?

Answer 13

yeah....thats right...
now u just simplify your answer and you've done..

Answer 14

y=-3(x+2)

Answer 15

@Eda2012
y=-3(x+2)

Answer 16

y=-3x-6

Answer 17

@Eda2012
y=-3(x+2
y=-3x-6 ?

Answer 18

no...
it suppose to be like this...
\[y=-3(x+2)+3\]

you cannot simply add or minus any number in the bracket....

Answer 19

sorry my mistakes the equation suppose to be like this
\[y=-3(x-1)+3\]

Answer 20

but still you cannot simply add or minus any number in the bracket with the number that outside the bracket...

Answer 21

Thanks. So this will be the final answer, right?

Answer 22

no...you have to simply it...

Answer 23

And how do I do that?

Answer 24

-3x-3+3?

Answer 25

yes...but you did a careless mistake in your answer just know...
it suppose to be
-3x+3+3

Answer 26

-3x+3+3...lol.. Thanks
=3x+6?

Answer 27

yes!!!

welcome~