Algebra Examples

$\frac{4 x^{2}}{x^{2} - 2 x - 3}$

Step 1

The range is the set of all valid $y$ values. Use the graph to find the range.

Interval Notation:

$(- \infty, 0] \cup [3, \infty)$

Set-Builder Notation:

${y | y \leq 0, y \geq 3}$

Step 2