Question

What is the equation of the line that passes through the points (-2, 3) and (2, 7)?

x - y = -1

x - y = -2

x - y = - 5

x - y = - 6
@Mertsj

Answer 1

can you find the slope first? Do you know how to do that?

Answer 2

I don't know how to with this type of problem.

Answer 3

have your learnt about equation of line
y=mx +b
where m = slope and b = yintercept

Answer 4

Yes, but how would that be set up on this problem?

Answer 5

OK they give you two points. The first thing you can do with the given points is find the slope of the line.

The points given to you are say

\[(x _{1}, y _{1}) \space and \space (x _{2}, y _{2})\]

The slope formula is:
\[\frac{ (y _{2} - y _{1})}{ (x _{2} - x _{1}) }\]

Answer 6

Go ahead find the slope and tell me.

Answer 7

Okay. give me a moment.

Answer 8

@unheard are you there?

Answer 9

slope = rise/ run
rise over run means, how much is the height changing with respect to the width

Answer 10

I got 4/4

Answer 11

Too many cooks. I do not want to confuse you. Find me if you still have problem

Answer 12

yep that is right so 4/4 = 1

Answer 13

yes. 4/4 is = 1

Answer 14

But 1 isn't in any of the choices. Just -1.

Answer 15

rajee sam, let me teach her, i want to teach her geometrically!

Answer 16

Now the slope intercept form of a line is given my "y = mx + b"

Where "m" is the slope and "b" is the y- intercept

Answer 17

this child will start writing equations of everything on her own after today

Answer 18

You guys are confusing me.

Answer 19

lol

Answer 20

OK Dan take care of it I will leave

Answer 21

okay we will call u if shes still stuck!

Answer 22

thanks

Answer 23

okay unheard, are you ready

Answer 24

Yes.

Answer 25

first tell me, have you seen this equation before
y=x

Answer 26

no.