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Tue 2 May, 2006 07:53 pm
1. evaluate: (f (x + h) - (f (x)) / h
if f (x) = 2x^(2) - 3x + 4
2. Find the value of k which makes (x-2) a factor of x^(3) + 3x^(2) + kx - 8.
3. A picture supposedly painted by Vermeer (1632-1675) contains 99.5% of its carbon-14 (half-life 5730 years). From this information, decide whether the picture is a fake. Explain your reasoning.
THANKS
What have you tried so far?
What is that?! Didn't really think for some time. BTW, do you have the answers?
Re: Math
prettytangela wrote:1. evaluate: (f (x + h) - (f (x)) / h
if f (x) = 2x^(2) - 3x + 4
...
THANKS
{2(x+h)^2 - 3(x+h) + 4 - [2x^2 - 3x + 4]} / h
{[2x^2 + 4xh + 2h^2 - 3x - 3h + 4] - 2x^2 + 3x - 4}/h
{4xh + 2h^2 - 3h}/h
4x +2h -3
ehhh isn't the first like some way for writing a derivative (I had to take my AP Calculus exam today in other news)? If so then its just 4x-3
El-Diablo wrote:ehhh isn't the first like some way for writing a derivative (I had to take my AP Calculus exam today in other news)? If so then its just 4x-3
That would only be true if one took the limit as h approaches zero, which was not part of the problem as reported to us.
Ahhh true; I assumed he implied it since I have only seen that form with the limits, but you're right it's not written.
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