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September 13th, 2007, 07:14 PM   #1
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How do you find a slope of a point on a line using a vector

I am having trouble coming up with the answer to this question. My professor asked us to prove how you find the slope of a point on a line using a vector using the following information:

y=mx+b
r=<t,f(t)>
r(prime)=<1,f((prime)(t(sub 0)))
r(t)=r(t(sub 0) + s<1,f(prime)(t(sub 0))>
<f,f(t)>=<t(sub 0), f(t(sub 0))> +s<1,f(t(sub 0))>
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