Question

how do you identify a slope on a coordinate graph?

Answer 1

You take two points on the line made by the slope. Then calculate the slope by taking

(Y2 - Y1) / (X2 - X1)

The slope is the ratio between the difference in the two y points and the difference in the two x points.

Answer 2

so on my homework it says rise: -5 and run:-5

Answer 3

i dont understand what that means i am only in 7th grade lol

Answer 4

You know when you look at the coordinate graph you have numbers on the x-axis and numbers on the y-axis?

Answer 5

yes

Answer 6

Okay, on the x-axis, move over 5 "spaces", then go up 10 "spaces"

Answer 7

but why ten because the rise is-5 and the run is -5

Answer 8

Yes, but we need to different points in order to calculate the slope of a line.

Answer 9

So now we have (5, 10) and (-5,-5) okay?

Answer 10

two*

Answer 11

ok

Answer 12

Y2 - Y1 / X2 - X1 just means this:

Take the SECOND y-point from (5, 10) and (-5, -5) which is -5
and subtract it from the FIRST y-point from (5, 10) and (-5, -5) which is 10

Answer 13

so we end up with
-5 - 10 = -15

Do you follow so far?

Answer 14

i do but i don't understand how you got 5 and 10 from

Answer 15

It's just a point I made up so that we can take the slope of a LINE (you need two points in order to do this). I'll come back to your question in a second (it will make sense trust me :) )

Answer 16

yeah i get this but on my homework i just don't know where to get the other pairs cuz it doesn't tell

Answer 17

Oh, I see.

Answer 18

So it just says rise = -5, and run = -5?

Answer 19

They got those numbers from doing what we're doing

Y2 - Y1 / X2 - X1.

It looks like that is already solved for you!

Answer 20

So that means we have
-5 / -5

Answer 21

and the slope is the ratio of RISE / RUN

Answer 22

So the slope = 1
!!!
Understand?

Answer 23

ohhhhh thxxxxx