SOLUTION: If you have a ancient coin and it raises its value every year by $20. In 4 years its worth $260. Write the equation y is the value of dollars and x is the years.

Question 996937: If you have a ancient coin and it raises its value every year by $20. In 4 years its worth $260. Write the equation y is the value of dollars and x is the years.

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
slope m=20 in units of dollars per year. One of the points (x,y) is (4,260). The point-slope form of the equation can be . This is easily stepped into the slope-intercept form that you want with appropriate simplification.
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