a blushing bride is in the process of hiring a dj for her wedding. a dj typically charges a fee to use the equipment and an hourly rate for party time.  one of her friends used the dj for 4 hours and it cost her $700. another friend used the dj for 6 hours and it cost her $1000.

A. Define your variables and write an equation that models this situation.

B. What is the y-intercept and what does it mean in context of the situation?