Posted by **Jayson** on Saturday, December 10, 2011 at 12:55am.

The population, P, of a town is modelled by the equation P=6x^3 +7x +750, where x is the number of years since the year 1960.

a) What was the population of the town in the year 1960?

P=6x^3 +7x +750

=6(60)^3 + 7(60) + 750

=6(216000)+420+750

=1296000+420+750

=1,297,170

The pop. was 1,297,170?

- Math -
**Steve**, Saturday, December 10, 2011 at 5:22am
If x is the number of years since 1960, then for the year 1960, x=0.

So, P(0) = 750.

Looking at your work, it appears that x is the number of years since 1900. In that case, your answer is correct.

- Math -
**Jayson**, Saturday, December 10, 2011 at 12:03pm
Its since 1960, so I plug in x=0 instead of 60?

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