Question

What is an equation in point-slope form of the line that passes through the points (7, 5) and (-4, -1) ?

Answer 1

\[\huge y-y_1=m(x-x_1)\]
where
m=slope
(x1,y1)

Answer 2

Before that we need to find the slope
\[\LARGE \frac{y_2-y_1}{x_2-x_1}=slope\]

Answer 3

Right....

Answer 4

@salemlover352

Answer 5

I am sorry I need all the help I can get.

Answer 6

Im willing to help :)
\[\LARGE \frac{-1-5}{-4-7}=slope\]

Answer 7

Thanks

Answer 8

-6/-11

Answer 9

Thats the slope right?

Answer 10

Correct now user this
\[\huge y-y_1=m(x-x_1)\]
where
m=slope
(x1,y1)

Answer 11

Oh snap this si where I get stuck

Answer 12

What don't you get?

Answer 13

All of it, like what to plug in

Answer 14

\[\huge~\rm~\bf y-y_1=m(x-x_1)\]where
m=slope=-6/-11
(x1,y1)
x1=7
y1=5
(7,5) <---they were the first given pairs of coordinates
Now plug everything in and tell me what you get! :) i know you can do it ^-^

Answer 15

Okay so y - 5 = -6/-11(x - 7)?

Answer 16

perfect! :D

Answer 17

But thats not even an option though :(

Answer 18

What are your options?

Answer 19

A. y + 1 = 6/7 (x + 4)

B. y + 1 = 6/11 (x + 4)

C. y + 4 = 11/6 (x + 1)

D. y - 1 = 6/11 (x + 4)

Answer 20

@pooja195

Answer 21

2 negatives make a positive slope forgot about that sorry!

Answer 22

And they used the secound pair of coordinates instead of the first

Answer 23

Oh okay so it would be C?

Answer 24

I mean A?

Answer 25

\[\huge~\rm~\bf y-y_1=m(x-x_1)\]where
m=slope=6/11
(x1,y1)
x1=-4
y1=-1
(-4,-1) <---they were the first given pairs of coordinates

Answer 26

Agh! I meant B and okay

Answer 27

Good :)

Answer 28

y + 1 = 6/11 (x + 40

Answer 29

Thanks! SO much, could you help me with 4 more? @pooja195

Answer 30

Ok :)

Answer 31

Thanks! Here's number 2.

Answer 32

Which is an equation of the given line in standard form?

A.
–8x + 9y = 23

B.
–8x + 9y = –23

C.
–8x + 7y = 25

D.
–9x + 8y = –23

Answer 33

The picture shows the information :). YOu are a lifesavor haha.

Answer 34

Im not good with graph equations @Photon336 can you please help?

Answer 35

@Photon336 I could really use your help lol.

Answer 36

wait with which one? the one you guys just did?

Answer 37

The last one that was posted

Answer 38

Yes

Answer 39

@Abbster2015 you can kind of build up the equation by looking at the graph. there are a few hints.

\[y = m(x)+b \]

the first thing you can do here find the slope of those two points

(-4,-1) and (0.5,3)

you can do this by using this formula do you know how to do this?

\[m = \frac{ y_{2}-y_{1} }{ x_{2}-x_{1} }\]

Answer 40

Kinda, but I get confused which numbers go in which slots, could you help me with that?

Answer 41

yeah sure, you have to chose which one is y2 and which one is x2

@abbster2015 you can chose any point and designate it as x2 and y2 let's say we chose the point (1/2,3) as x2 and y2



follow?