Algebra Examples

$H (w) = \frac{75}{w}$

Step 1

Set the denominator in $\frac{75}{w}$ equal to $0$ to find where the expression is undefined.

$w = 0$

Step 2

The domain is all values of $w$ that make the expression defined.

Interval Notation:

$(- \infty, 0) \cup (0, \infty)$

Set-Builder Notation:

${w | w \neq 0}$

Step 3