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Mathematics 10 Online
OpenStudy (anonymous):

(2,0) (2,6) (9,6) slope ? what a golden ? solve :)

OpenStudy (owlcoffee):

first off you'll have to prove that the points are aligned.

OpenStudy (owlcoffee):

\[\left[\begin{matrix}x_a & y_a & 1 \\ x_b & y_b & 1\\ x_c & y_c & 1\end{matrix}\right]=0\] That is the equation you can use to prove that three points are aligned.

OpenStudy (solomonzelman):

it seems like a (right) triangle.... not even a(n explicit) function. maybe there is a typo in these points (idk)

OpenStudy (owlcoffee):

I don't know really, too little information.

OpenStudy (solomonzelman):

there is no slope here. well, only between the slope (of the secant) between the last 2 points

OpenStudy (solomonzelman):

hehe-:(

OpenStudy (owlcoffee):

Well yes and no, if the three points are aligned, the slope that represents the first two, must also represent the third.

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