did the price decrease over the two years

Question

If a story problem is talking about the price of widgets since 2010 and it gives the equation p = -.75x + 2.09, where x is the number of years since 2010, you know that ...

Answer 1

In 2010 x is zero and the price is 2.09 in 2011, x=1 and price = 2.09 -.75*1 = 1.34. in 2012 X=2 and price = 2.09 -.75*2 = .59

Answer 2

Angelina,

You know that the price was 2.09 in 2010 and that the price is decreasing at a rate of .75/tear. So in 2011 the price was 1.34.

OK?

Jim