Question

How do you evaluate a function at a given value of x, such as f(2) if f(x) = 3x - 5?

Answer 1

f (2) = 1

Explanation:

• In order to evaluate a function at a given value of x, first write down the given function, which is:

• f(x) = 3x - 5

• Next, plug the value of x (x = 2) in the above function and simply it as given below.

• f(2) = 3(2) - 5

• -> f(2) = 6 - 5

• -> f(2) = 1

This is the way to evaluate a function at a given value of x.