Question

MEDAL+FAN What is the equation of the line that passes through the points (−2, 1) and (1, 10)?

3x − y = −7
3x − y = −5
3x − y = 5

Answer 1

slope, m = diffy/diffx

m = (1-10)/(-2-1)
m = ?

y=mx+b

Answer 2

i dont know how to solve it @mthompson440

Answer 3

What does 1-10= ?

Answer 4

9 @mthompson440

Answer 5

pay attention to the negative

Answer 6

-9 then @mthompson440

Answer 7

yes. Now, what does -2-1=?

Answer 8

1!! @mthompson440

Answer 9

No, that is wrong, @lexber. It is actually -3, take time and be patient.

Answer 10

sorry @Thadds2003 I am very bad at math... could you help me finish the rest please

Answer 11

I kind of don't know this, but lets try from the information that @mthompson gave us. Hold on......

Answer 12

Hey I think I know hold on!

Answer 13

okay (:

Answer 14

I'm working on the answer......

Answer 15

I understand @Thadds2003 , I like to ave answers from a few people so I learn more!

Answer 16

Ok..... Almost done........

Answer 17

Thank you so much @Thadds2003

Answer 18

Ok, I might need some help. @Qwertty123 , you said you might know how to do this, correct? If so lets work together.

Answer 19

okay

Answer 20

Yes I am willing to work together!! I'm really not that good tbh in math ): bu I'll try hard

Answer 21

Okay, so we left of at -3, I need a review on the steps. Anybody willing to get me caught up?

Answer 22

WAIT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 23

I cant bc idk how to do this

Answer 24

I HAVE THE ANSWER!!! LET ME TYPE IT OUT!!!

Answer 25

I'm 100% sure about this answer......

Answer 26

Gradient = (10 - 1) / (1 - (-2)) = 9 / 3 = 3
Using (-2, 1):
y = 1 + 3(x - (-2)) = 1 + 3x + 6 = 3x + 7
3x - y = -7 (answer)

Answer 27

really omg thnk you

Answer 28

wow!!! you just saved my life!!! thank yoi so so much

Answer 29

Yeah! :)

Answer 30

Glad to help. Tag me when you need help, if you like.

Answer 31

Are you going to close the question? Medal? lol.

Answer 32

I'm sorry...