Answers

2014-06-13T14:15:45+08:00
M=\frac{y^2-y^1}{x^2-x^1}
0
I think there is something wrong w/ your answer. it can be misleading.
can i ask a question why do you think its misleading vilesx? ty..:)
y^2-y^1 and x^2-x^1
it should be ysub2 - ysub1
2014-06-13T14:17:48+08:00
M= \frac{y}{x}

Slope =  change in y  
             change in x

M=\frac{y_2-y_1}{x_2-x1}

or

M = tangent Ф


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