Look at the graph of the given relation. determine whether the relation is a function. explain why or why not. (4.2, 6.2), (-0.8, 6.2), (-3.8, 4.2), (-3.8, -1.8)

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.