Question

Find the slope of the line containing the given pair of points. If the line is undefined, state so
(1, -9) and (-2, -3)

Answer 1

use point slope formula... (y2-y1)/(x2-x1) and if slope is undefined line will be parallel to x axis and slope would be infinity

Answer 2

how do i fine them

Answer 3

well you've to substitute the points on the point slope form...like (-3-(-9))/(-2-1)..and in case of undefined slope you need not to find anything since infinite slope defines a line parallel to Y axis

Answer 4

ihave to make a graph

Answer 5

for what?

Answer 6

as per your question you're done ....with slope

Answer 7

Plot each of the points on an x y coordinate system and draw a line through the points using a straight edge.

Answer 8

ok i did

Answer 9

this is a rough sketch

Answer 10

its a straight line

Answer 11

Yes

Answer 12

a bit more down hill from left to right than the rough sketch

Answer 13

ok never mine i'm not understanding this

Answer 14

i'm so lost

Answer 15

How so? Are you using graph paper to plot?

Answer 16

how do i find a slope

Answer 17

use point slope formula that i have shown earlier

Answer 18

Find the slope of the line containing the given pair of points. If the line is undefined, state so. Please be sure to show all of your work.

(1, -9) and (-2, -3)

Answer 19

Well, you are given two points. When you put those points on a graph and draw a line between them, you will basically have a slope to that line.

Answer 20

it'll be 6/-3=-2

Answer 21

If it is level, you have no slope, or zero.
If it is straight up, it is undefined.
All of the other numbers are in the middle.

Answer 22

I think of riding my bicycle on the line from left to right. If it is hard to pedal up the hill, it is a big positive slope.

Answer 23

Once you get the concept that slope is how steep the hill is, then you use ghazi's equation for slope. \[m=(y2-y1)/(x2-x1)\]

Answer 24

You could say that your (1,-9) point is the (x1, y1) point and that the (-2, -3) point is your (x2, y2) point. Or the other way around, it will work itself out either way through the positive and negative signs.

Answer 25

Close, but your x's and y's are mixed up.
(1,-9) is to the right one space and down 9 spaces from the origin.

Answer 26

ok