how dy/dx and y1-y2=m(x2-x1) related?

I mean shouldn't dy/dx = m ?

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- December 15th 2012, 10:20 PMameerulislamhow dy/dx and y2-y1=m(x2-x1) related?
how dy/dx and y1-y2=m(x2-x1) related?

I mean shouldn't dy/dx = m ? - December 15th 2012, 10:32 PMMarkFLRe: how dy/dx and y2-y1=m(x2-x1) related?
The tangent line to a differentiable function at the point is:

- December 15th 2012, 10:35 PMProve ItRe: how dy/dx and y2-y1=m(x2-x1) related?
- December 15th 2012, 11:06 PMameerulislamRe: how dy/dx and y2-y1=m(x2-x1) related?