Trigonometry Examples

$y = - 9 \sec (x)$

Step 1

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

Interval Notation:

$(- \infty, - 9] \cup [9, \infty)$

Set-Builder Notation:

${y | y \leq - 9, y \geq 9}$

Step 2