Finite Math Examples

$y = 2 x^{2} + 5 x - 7$

Step 1

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

Interval Notation:

$[- \frac{81}{8}, \infty)$

Set-Builder Notation:

${y | y \geq - \frac{81}{8}}$

Step 2