Find the Range f(x)=-2x^2+12x-23

$f (x) = - 2 x^{2} + 12 x - 23$

Step 1

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

Interval Notation:

$(- \infty, - 5]$

Set-Builder Notation:

${y | y \leq - 5}$

Step 2