# Functions

Calculus Level 4

let $$y=f\left( t \right)$$ be a function such that $$\displaystyle \lim _{ t\rightarrow 0 }{ \frac { f\left( 2+t \right) -f\left( 2-t \right) }{ t } } =4$$.

Which of the following conclusions can be drawn from this data?

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