What is the domain of y=e^{-x} ?

The domain of y=e^{-x} is -infinity <x<infinity

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domain of y=e^{-x}

domain

y = e^{- x}

- \infty < x < \infty

Interval Notation

(- \infty, \infty)

Solution steps

The function has no undefined points nor domain constraints. Therefore, the domain is

- \infty < x < \infty

f (x) = \frac{x}{2 x - 9}

\frac{( x + 8 )}{( x ^{2} - 2 x - 15 )}

f (x) = \frac{1}{4 - 2 - x}

f (x) = - x^{2} - 3 x + 4

f (x) = \frac{x - 1}{x ^{2} + 6 x - 27}

What is the domain of y=e^{-x} ?
The domain of y=e^{-x} is -infinity <x<infinity