Question

The function f is defined by f(x) = -2x + 8. What is the value of f(4)?

a) 0
b) 2
c) 4
d) 8

Answer 1

The value of f(4) is 0.

Step-by-step explanation:

The function f(x) = -2x + 8 represents a linear equation in the form y = mx + b, where m is the slope and b is the y-intercept.

To find the value of f(4), substitute x = 4 into the equation: f(4) = -2(4) + 8 = -8 + 8 = 0.

Therefore, the value of f(4) is 0, so the correct option is a) 0.