Calculus Examples

$f (x) = \frac{48000}{100 - x}$

Step 1

Set the denominator in $\frac{48000}{100 - x}$ equal to $0$ to find where the expression is undefined.

$100 - x = 0$

Step 2

Solve for $x$ .

Tap for more steps...

Step 2.1

Subtract $100$ from both sides of the equation.

$- x = - 100$

Step 2.2

Divide each term in $- x = - 100$ by $- 1$ and simplify.

Tap for more steps...

Step 2.2.1

Divide each term in $- x = - 100$ by $- 1$ .

$\frac{- x}{- 1} = \frac{- 100}{- 1}$

Step 2.2.2

Simplify the left side.

Tap for more steps...

Step 2.2.2.1

Dividing two negative values results in a positive value.

$\frac{x}{1} = \frac{- 100}{- 1}$

Step 2.2.2.2

Divide $x$ by $1$ .

$x = \frac{- 100}{- 1}$

Step 2.2.3

Simplify the right side.

Tap for more steps...

Step 2.2.3.1

Divide $- 100$ by $- 1$ .

$x = 100$

Step 3

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

Interval Notation:

$(- \infty, 100) \cup (100, \infty)$

Set-Builder Notation:

${x | x \neq 100}$

Step 4