Question

Use synthetic substitution to find f(3) for each function.
f(x) = x² - 4x + 5

Answer 1

f(3) = 2

Explanation:

substitute x = 3 into f(x)

f(3) = 3² - 4(3) + 5 = 9 - 12 + 5 = - 3 + 5 = - 2