y = mx + b
y = new price of apartment
m = amount changed per year
x = change in time
b = starting price of apartment
it gives us one scenario, so solve for b:
125,000 = (3000)4 + b
b = 113,000
Therefore, the linear function associated with this is...
y = 3000x + 113000
A new apartment building was sold for $125000 4 years after it was purchased. The original owners calculated that the building appreciated $3000 per year while they owned it. Find a linear function that describes the appreciation of the building, if x is a number of years since the original purchase.
1 answer