Urgent Calculus Problem??

Posted on 2015-12-02 06:38:00 in Math by MIKE LAMBA

Consider the line y=8 x -1 and the point P=(2,0).
(a) Write the formula for a function d(x) that describes the distance between the point P and a point (x,y) on the line. You final answer should only involve the variable x. Then d(x) = ?
(b) d (x)=?
(c) The critical number is x=?
(d) The closest point on the line to P is (_,_)

I don t know how to do A but I could easily do b and c once I know how to do a. Not sure about d though. Help is appreciated!!

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