Question

Okay, how do I calculate the slope of the line that passes throught the points
(-2,-5)
(5,8)
I know how solve this when it comes to it being on a graph,
I also know for this I need the formula
m=y2 -y1
x2 - y1

Answer 1

first you would calculate the slope using the formula

\[8-(-5)\over5-(-2)\]

Answer 2

then you would get this\[13 \over 7\]

Answer 3

So, are you dividing or multiplying the numbers?

Answer 4

i believe you misplaced some values ...

Answer 5

or im seeing it off a little .... i dont do the formula that well

Answer 6

(2,5)
(5,8)
----
7,13

your right

Answer 7

I'm confused. How did you get 7 and 13? What did you multiply/divide together? Do you cross multiply/divide or divide/multiply what's next to each other?

Answer 8

you subtract what it tells you to subtract ... the formula is already setup as a fraction

Answer 9

Oh. .-. I forgot there was a subtract sign.

Answer 10

if you want a different approach .. move the points so that one of them is at the origin

Answer 11

(-2,-5) (5, 8)
+2+5 +2+5
--------------
0 0 7 13; slope = y/x ... 13/7

Answer 12

i tend to place the wrong numbers into the wring places if i have to use the formula ... this just makes it idiot proof for me :)

Answer 13

Okay, the other problem I'm on now is

Choose the correct slope of the line that passes through the points (0, 0) and (3, 30).

so it would be
30 - 0
---------
3 - 0

Then after that, I simply it, and I get 10?

Answer 14

correct

Answer 15

Can I ask 1 more question?

Answer 16

i just remember it like this:

Answer 17

Ah, that does seem a bit simpler than the original.