Find the point on the curve y=√(4x) that is closest the the point (3,0)

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Homework Statement


Find the point on the curve y=√(4x) that is closest the the point (3,0)


Homework Equations





The Attempt at a Solution


I don't even know where to start.
 
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What's the distance between (x,sqrt(4x)) and (3,0)?
 
It wasnt given. The only thing given was the point, and the equation.
 
mg2 said:
It wasnt given. The only thing given was the point, and the equation.

No, no. In general, what's the distance between two points (a,b) and (c,d)? Use a general distance formula. You don't have to be given the formula.
 
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