Question

Write the standard form of the line that passes through the given points.
(7, -3) and (4, -8)

Answer 1

let's put it in point slope form first

Answer 2

How do you do that?

Answer 3

do you know what point slope form is?

Answer 4

No, I haven't really worked with point slope

Answer 5

Wait, no, maybe not point slope. Have you learned slope intercept form?

Answer 6

Yes ma'am. y=mx+b

Answer 7

Okay, let's use that then :)
First we need to find the slope

Answer 8

Alright, gimme a second.

Answer 9

ok :)

Answer 10

5/3

Answer 11

Yes, now we can use that to find the y intercept

Answer 12

-44/3

Answer 13

what is -44/3?

Answer 14

The y-intercept.

Answer 15

the y-intercept is where x = 0

Answer 16

Oh..lol I just went to Mathway.com and got the slope and y-intercept from there

Answer 17

do you know how to find slope?

Answer 18

y2-y1/x2-x1

Answer 19

Ok, I see what you are saying, the y intercept is 0, 44/3

Answer 20

Now we have y = 5/3x - 44/3

Answer 21

I am just confusing myself now...

Answer 22

Me too! Lol

Answer 23

@hartnn

Answer 24

whats the standard form of line ?

Answer 25

I don't know! That's what I'm trying to figure out lol

Answer 26

its
ax+by =c

Answer 27

Yes.

Answer 28

y = 5/3x - 44/3

multiply throughout by 3

Answer 29

Even y?

Answer 30

everything
that will eliminate fractions on right side
and make our life easier ^_^

Answer 31

3y=5x-44

Answer 32

Would the answer be 5x+3y=-44?

Answer 33

Almost

Answer 34

You added 5x instead of subtracting

Answer 35

5x was never negative though

Answer 36

but we need to subtract to move it to the left side

Answer 37

-5x+3y=-44 ??

Answer 38

yes, and personally, I would probably multiply by -1 to make x positive, but it isn't required

Answer 39

lets do that,
it wil be more accurate

Answer 40

???

Answer 41

keeping the co-efficient of x as positive

Answer 42

multiply by -1 throughout

Answer 43

So it would make 3y negative

Answer 44

Everything just changes signs

Answer 45

So the answer is 5x-3y=44

Answer 46

Yes

Answer 47

AHH THANK YOU BOTH

Answer 48

This is all so confusing to me. I have a few more questions if y'all wouldn't mind helping me

Answer 49

you're welcome
sure :)