Find the Range f(x)=-3x^2-12x-11

$f (x) = - 3 x^{2} - 12 x - 11$

Step 1

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

Interval Notation:

$(- \infty, 1]$

Set-Builder Notation:

${y | y \leq 1}$

Step 2