1. State the definition of the derivative, and give two interpretations of it. 2. Find the values of x at which the curve y= f(x) has a horizontal tangent. If you can help me, I would gradually appreciate it
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1) Google it. Think about the definition. 2) This question makes no sense. You get a horizontal tangent when . To work it out the function has to be known (I think).
I did find the first one but I am still lose on the second
There is some information missing. The curve f(x) has horizontal tangent when its derivative is zero.
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