GCSE Maths Practice: functions

Question 5 of 10

This question practices evaluating linear functions f(x) = 2x + 1.

\( \text{Find the value of } f(3) \text{ for the function } f(x) = 2x + 1. \)

Choose one option:

Check multiplication and addition carefully.

Substitute x = 3 and compute f(3).