Question

Please help, pleasee!

x - y = -1

x - y = -2

x - y = - 5

x - y = - 6

Answer 1

brrr... hold on ! what's the question and what are the options ?

Answer 2

Oh crap sorry I didn't realize the question wasn't on there haha its What is the equation of the line that passes through the points (-2, 3) and (2, 7)?

Answer 3

Can you find the slope ?

\(\Huge\color{blue}{ \bf slope~=~\frac{y_{1}-y_{2}}{x_{1}-x_{2}} }\)


plug in your points.

Answer 4

3-7 over -2-2?

Answer 5

\[\frac{3-7 }{-2-2}=\frac{-4 }{-4}=1\]

Answer 6

Okay what happens after?

Answer 7

Now, you can write

y=x+b

b is the unknown y-intercept. I am going to plug in one of your given pints to solve for this intercept.
y=x+b plunging in (2, 7)
(7)=(2)+b
7=2+b
b=5
So

y = x+5 if you rearrange it , you get
-x -x

y -x = 5 divide all this by -1,
-y+x=5 which is equal to

x - y = - 5

Answer 8

So the answer is C?

Answer 9

Okay that makes sense now, thank you so much!!!!

Answer 10

You welcome !