Find the Range f(x)=-8x^2-40x+3

$f (x) = - 8 x^{2} - 40 x + 3$

Step 1

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

Interval Notation:

$(- \infty, 53]$

Set-Builder Notation:

${y | y \leq 53}$

Step 2