Several years ago, dave bought an antique clock. since then, it has increased in value. if x represents the number of years he has owned the clock, and y represents the value of the clock (in dollars), which of the following situations is represented by the graph below
a. dave bought the clock for $300. each year the value of the clock increased by $125.
b. dave bought the clock for $300. each year the value of the clock increased by $100.
c. dave bought the clock for $300. each year the value of the clock increased by $200.
d. dave bought the clock for $300. each year the value of the clock increased by $50.