Question 550:

Asked on December 12, 2008

Tags: Trend Line

1

Answer:

No answer provided yet.So what we'll want to do here is solve the equation algebraically given the value of 14.
1. T14 = 22.6 + 0.45(14)=
2. First, parenthesis next to a number mean to multiply. The order of operations is to first multiply and divide, then add and subtract. So .45*.14 = .063
3. Now we add the constant 22.6  to the result in step 2. .063+22.6 = 22.663
So our prediction for the yearly data in 2008 is 22.663. 
To solve for any year, we just substitue that year in the original equation Tt=22.6+0.45t where t is the year number starting from 1995