Question

What is the slope of the line that passes through the points (–2, 15) and (–8, –5)?


A.) -10/3

B.) -5/2

C.) 5/2

D.)10/3

Answer 1

-5 - (-15)/-8 - (-2)

Answer 2

Just remember the rule when you add two negatives together

Answer 3

Why do you use the second point as (x1,y,2) instead of the first ;) Doesn't matter, just curious.

Answer 4

I mean (x,1,y1)

Answer 5

Yes, I have learned it y2-y1 / x2-x1

Answer 6

(x1, x2), (y1), y2)

Answer 7

@SolomonZelman i get 10/-6...where did i go wrong mate?

Answer 8

ggg
\[15-(-5)=20~~~~~~~-5-15=-20\]

Answer 9

how did you get -6?

Answer 10

either way ...

Answer 11

-8 - (-2)

Answer 12

oh, I answered my own question

Answer 13

yes, so it is ±20 going whichever way...

Answer 14

-8 - -2 = -6...and ohhh...
i did -5 - -15 lolz

Answer 15

yes, and that's where you got confused, because the 15 is positive in the coordinate.

Answer 16

it is easy to make an error when you are doing the subtraction

Answer 17

but I find if you write it out with the - in () then you can just change it a plus

Answer 18

it is (-2,15) , NOT (-2,-15)

Answer 19

Yeah i saw that lolz...

Answer 20

good :)

Answer 21

is there a way to field questions into another subject? there is a lot of questions all over the place, biology, chemistry, etc...

Answer 22

I feel like I am helping others in multiple subjects in a math community

Answer 23

i have no clue wat yall just did i tryed to figure it out but still didnt get the answer

Answer 24

Its B?

Answer 25

-5 - 15/ -2 - -8
-20/-6 = -10/3
I would say A
am i right @SolomonZelman

Answer 26

you would have -20/6 right?

Answer 27

-2 - - 8 = -2 + 8 = 6

Answer 28

Yes, undeadknight, it's A