Question

Given
f(x) = 2x² + 5x - 17,
find f(-1).

Answer 1

To find f(-1), substitute -1 for x in the given function f(x) = 2x² + 5x - 17.

Step-by-step explanation:

To find f(-1), we substitute -1 for x in the given function f(x) = 2x² + 5x - 17. Hence, f(-1) = 2(-1)² + 5(-1) - 17.

Simplifying the expression, we get f(-1) = 2 - 5 - 17 = -20.

Therefore, f(-1) = -20.

Learn more about Evaluating a quadratic function at a specific value