Finite Math Examples

y = \frac{x^{2} - 4}{x + 2}

$y = \frac{x^{2} - 4}{x + 2}$

Step 1

The range is the set of all valid

y

$y$ values. Use the graph to find the range.

Interval Notation:

(- \infty, - 4) \cup (- 4, \infty)

$(- \infty, - 4) \cup (- 4, \infty)$

Set-Builder Notation:

{y | y \neq - 4}

${y | y \neq - 4}$

Step 2

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$