What is the slope of $f (x) = - e^{x} + 3$ $f(x)=-e^x+3$ at $x = - 1$ $x=-1$ ?

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Answer 1 · 2016-06-27T18:46:41

$- \frac{1}{e}$ $- 1/e$

$f (x) = - e^{x} + 3$ $f(x)=-e^x+3$

$f'(x)=-e^x$

$f'(-1)=-e^(-1) = - 1/e$

Desmos

What is the slope of f(x)=-e^x+3f(x)=−ex+3f(x)=-e^x+3 at x=-1x=−1x=-1?