Question

Given the function, f(x) = x2 - 10x - 17, find the following: a) f(5) = b) f(0) =

Answer 1

- 42 , - 17

Explanation:

(a)

substitute x = 5 into f(x) , that is

f(5) = 5² - 10(5) - 17 = 25 - 50 - 17 = 25 - 67 = - - 42

(b)

substitute x = 0 into f(x)

f(0) = 0² - 10(0) - 17 = 0 - 0 - 17 = - 17