Jonah received $300 in cash gifts for his fourteenth birthday. the function y remaining after x week if Jonah spends $25 each week. Graph the function and determine the amount remaining after 9 week
Assume that y its Jonah's cash and its initially 3000 y=300 But he spends 25/week. Assume that x is number of weeks. y=300-25*x - its our function If we want to find Jonahs cash after 9 week we have to substitute x=9, so y=300-25*9 y=300-225 y=75$ - its the result
