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Mathematics 22 Online
OpenStudy (anonymous):

Find the slope of the line passing through the points (-3, -8) and (5,6) . please help me

OpenStudy (anonymous):

sweetie it is simple .. let me help you

OpenStudy (anonymous):

please that would be nice

OpenStudy (anonymous):

do you know the the formula for finding slope?

OpenStudy (anonymous):

x,y

OpenStudy (anonymous):

no.... it is something like y2-y1/x2-x1 ... strikes anything familiar?

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

ok well let me start from scratch ... see you are given two points let us name them a and b ok?

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

let me use your problem as an example ...

OpenStudy (anonymous):

in your question let us take point a to be (-3,-8) and point b to be as (5,6)

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

ok now answer these questions ... which is the x and y coordinate of A?

OpenStudy (anonymous):

x is -3 and y is -8 for A

OpenStudy (anonymous):

good! now for b?

OpenStudy (anonymous):

x is 5 and y is 6

OpenStudy (anonymous):

nice!

OpenStudy (anonymous):

well now slope =\[ y (cord .a)- y(cord.b)\]

OpenStudy (anonymous):

divided by x(cord of a)-x(cord of b)

OpenStudy (anonymous):

tell me w\hat you get?

OpenStudy (anonymous):

-1.6666667

OpenStudy (anonymous):

minus?

OpenStudy (anonymous):

oh so i subtract -3 and 5

OpenStudy (anonymous):

yes you get -8 in the bottom and -14 on the top

OpenStudy (anonymous):

did you get that?

OpenStudy (anonymous):

thats for both like A and B

OpenStudy (anonymous):

your answer will be 1.75

OpenStudy (anonymous):

just answer me whether you got 1.75

OpenStudy (anonymous):

ya

OpenStudy (anonymous):

great now listen we took point a as (-3,-8) and b as (5,6) right? ... now what happens if we take a as (5,6) and b as (-3,-8)

OpenStudy (anonymous):

idk

OpenStudy (anonymous):

find the answer ... the same formula i just gave you

OpenStudy (anonymous):

y (a) -y(b) / x(a) -x(b)

OpenStudy (anonymous):

what you get?

OpenStudy (anonymous):

8/14 = 1.75

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