Finite Math Examples

$\log_{2} (x - 2)$

Step 1

Set the argument in $\log_{2} (x - 2)$ less than or equal to $0$ to find where the expression is undefined.

$x - 2 \leq 0$

Step 2

Add $2$ to both sides of the inequality.

$x \leq 2$

Step 3

The equation is undefined where the denominator equals $0$ , the argument of a square root is less than $0$ , or the argument of a logarithm is less than or equal to $0$ .

$x \leq 2$

$(- \infty, 2]$

Step 4