In a board game, the player who makes the last move receives a 12-point bonus for ending the game.
Let s represent the score before the endgame bonus and f represent the final score.
Find the value of f when s=10.
f=

f(s) = 2( 5s + 6)

Step-by-step explanation:

This means value of f of s

final score before bonus = 2 x 5 = 10

Add the bonus = 2 x 6 = 12

Add together if simplified= 10s+12, we remove the s, then add and confirm score has now been fully totaled = 22.

Half way through we can show 10s is the score of both even and only fs = 22 for the winner.

the perimeter is increased by a factor of 2