# In 1977 a math professor bought her condominium in Cambridge, Massachusetts, for \$70,000. The value of the condo has risen steadily so that in 2007 real estate agents tell her the condo is now worth \$820,000. Find a formula to represent these facts about the value of the condo V(t), as a function of time, t, where t is in years after 1977.

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In 1977 a math professor bought her condominium in Cambridge, Massachusetts, for \$70,000. The value of the condo has risen steadily so that in 2007 real estate agents tell her the condo is now worth \$820,000. Find a formula to represent these facts about the value of the condo V(t), as a function of time, t, where t is in years after 1977.

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Step 1

Let t= number of years after 1977

At 1977 value was \$70000. So coordinate is (0,70000)

Step 2

In 2007, t=2007-1977=30

In 2007 value is \$820...

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### Algebra 