Need help on this problem

http://imgur.com/0KPop.jpg

have 0 idea what to do/how to start it... (Worried)

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- October 7th 2010, 06:46 PMstiitchesTangent to Given Curve
Need help on this problem

http://imgur.com/0KPop.jpg

have 0 idea what to do/how to start it... (Worried) - October 7th 2010, 07:03 PMJhevon
- October 7th 2010, 07:05 PMstiitches
- October 8th 2010, 06:40 AMHallsofIvy
In order for a line to be tangent to a curve, at a given point, both curve and line must pass through the point and must have the same derivative there.

So you need to find c**and**x such that and they have the same derivative for that x. That is two equations to solve for x and c.

I will give you one derivative free- the derivative of is , for all x. What is the derivative of ? (That**will**depend on x.)