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anonymous
 5 years ago
If i use the formula for tangent line approximation
F(x)=f(a)+f'(a)(xa)
and i use the function x^2 i end up with
F(x)=x^2+2x(xa)
what would i use for my (xa)
anonymous
 5 years ago
If i use the formula for tangent line approximation F(x)=f(a)+f'(a)(xa) and i use the function x^2 i end up with F(x)=x^2+2x(xa) what would i use for my (xa)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the smaller your a, the better your approximation

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0usually, with problems like that, our teacher would ask the error, based on the a used for a given interval

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So a can be any number i pick?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it sounds like something is missing from the question to me

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well the goal is to come up with three problems to give to the teacher (don't ask me why) but this is the first time i have ever seen this stuff.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, so linear approximation, is F(x0) + F'(x0)(xx0), (xx0) is deltax, or change in x. the smaller the change, the better the accuracy (usually)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0maybe you can choose functions whose accuracy changes drastically depending on what delta you choose

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it's not really about the a or x0 that you use, but that delta x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok thanks man i think i understand now
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