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