Think of a mathematical function that represents something from your own life. For example, suppose the number of beers you drink depends on the number of football games you watch. If you drink five beers during every football game, the function would be:
Number of Beers (B) = 5 times Number of Football Games (F), or B = 5F.
But suppose you drink 2 beers each day irrespective of football, but in addition you drink four beers during every football game. In this case:
Number of Beers (B) is 2 + 4 x Number of Football Games, or B = 2 + 4F.
2. Given the linear equation, try to create a system of linear equations using the linear equation just created as one of the equations.