If f(x) = -7x + 5x² + 10, what does f(-2) equal?

Solution:

Given function is

f(x) = -7x + 5x² + 10

When x = -2, f(-2) is computed as follows

f(-2) = -7(-2) + 5(-2)² + 10

f(-2) = 14 + 5(4) + 10

f(-2) = 14 + 20 + 10

f(-2) = 44.

If f(x) = -7x + 5x² + 10, what does f(-2) equal?

Summary:

If f(x) = -7x + 5x² + 10, then f(-2) is equal to 44.