What is the slope of the line between (-4, 4) and (-1, -2)
can you put this in \[\frac{ y1-y2 }{ x1-x2 }\]
either way works
Go with @KlOwNlOvE otherwise you will get confused.. :)
best to get as little negatives as possible
It is beauty that you are able to take -ve as common from denominator too otherwise it could not work either way.. :P
so -4--1 and --2
Slope = 2
2 or -2?
-4-2 = ??
-2
why are you doing -4-2? 4 looks positive to me
-2 -4 = ??
\[\frac{ 4-(-2) }{ -4-(-1) }\]
That is for y2 - y1
2 negatives will make a positive \[\frac{ 4+2 }{ -4+1 }\]
\[m = \frac{-2 - 4}{-1 + 4}\]
and thats for y2-y1^
@KlOwNlOvE let me delete my replies, otherwise, user will get confused.. :)
yall confused me a bit lol which way are we going
You are doing y1 - y2..
??
ok lets get started then
\[\frac{ 4-(-2) }{ -4-(-1) }\]
@KlOwNlOvE your formula is wrong
formula can go either way as long as x1 is lined up with y1
ok
@Eli_Moses, we two are enough to make a user get confused easily, you won't want to join us, otherwise, user will not only close this question, he or she will delete his or her OS account too.. :P
lol ok
\[\frac{ y1-y2 }{ x1-x2 }\frac{ y2-y1 }{ x2-x1 } but no \frac{ y2-y1 }{ x1-x2 }\]
@KlOwNlOvE the formula you are using is giving right results but it is not standard one.. We generally chose final - initial, so y1 is initial coordinate and y2 is final..
a guy thatll confuse someone is phi but really good teacher
I can too but I don't.. Users here are already confused, so why to double their trouble..!! :P
He was teaching me how to do weird calculus yesterday idk how many times i got confused
\[\frac{ y _{2}-y _{1} }{ x _{2} - x _{1} }\] \[(-4, 4) (-1, -2)\] \[(x _{1}, y _{1})(x _{2}, y _{2})\] so then \[\frac{ (-2) - 4 }{ (-1)-(-4) }\] or \[\frac{ (-2)-4 }{ (-1)+4 }\] since negative and negative equal positive. now solve... \[\frac{ (-2) - 4 }{ (-1) +4 } = \frac{ -6 }{ 3 } = \frac{ -2 }{ 1 } = -2\] so the answer is -2. Your welcome. :P
Checked: Slope: k = dy/dx = -2 http://www.hackmath.net/en/calculator/line-slope?x0=-4&y0=4&x1=-1&y1=-2&submit=Solve
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