Pregunta
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Find the point on the graph of the function that is closest to the given point.
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Ask by Elliott Wheeler. in the United States
Mar 24,2025
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The closest point on the graph of
to the point
is
.
Solución

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Como
The Deep Dive
To find the point on the graph of the function
that is closest to the point
, we first need to express the distance between a generic point on the function,
, and the point
. The distance
can be given by the formula:
Substituting
:
To minimize the distance, you can minimize
instead to avoid dealing with the square root. So now you can formulate:
Now, differentiate
with respect to
, set the derivative equal to zero, and solve the resulting equation to find the x-coordinate of the closest point. Don’t forget to check that
because the function is defined only for
.
Lastly, plug this
value back into the function
to get the corresponding
value. You’ll find a point that you can express as
.
Let me know if you need further assistance!

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