Precalculus Examples

$e^{x} = y$

Step 1

Rewrite the equation as $y = e^{x}$ .

$y = e^{x}$

Step 2

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

$(- \infty, \infty)$

Set-Builder Notation:

${x | x \in ℝ}$

Step 3