Precalculus Examples

$16 x^{2} + k x + 9 = 0$

Step 1

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

Interval Notation:

$(- \infty, - 24] \cup [24, \infty)$

Set-Builder Notation:

${y | y \leq - 24, y \geq 24}$

Step 2