Question

A employer, who started a new business, has promised his employees a minimum starting wage of $3, with an increase of $2 every 4 years. Sketch a graph of wage as a function of time for 16 years. Assume the wages take effect at the beginning of the year where the change is made. (HINT: use a step function to represent the function.)

Answer 1

This is a step function because it increases in "steps".  The wage stays constant for a 4 year period, then jumps by $2 instead of a steady increase.