3. The linear equation

represents an estimate of the average cost of gas for year x starting in 1997 (“Consumer price index,” 2006). The year 1997 would be represented by x = 1, for example, because it is the first year in the study. Similarly, 2005 would be year 9, or x = 9.
a. What year would be represented by x = 4?

b. What x-value represents the year 2018?

c. What is the slope, or rate of change, of this equation?

d. What is the y-intercept?

e. What does the y-intercept represent?

f. Assuming this growth trend continues, what will the price of gasoline be in the year 2018? How did

Question

3.	The linear equation

represents an estimate of the average cost of gas for year x starting in 1997 (“Consumer price index,” 2006). The year 1997 would be represented by x = 1, for example, because it is the first year in the study. Similarly, 2005 would be year 9, or x = 9.
a.	What year would be represented by x = 4?

b.	What x-value represents the year 2018?

c.	What is the slope, or rate of change, of this equation?

d.	What is the y-intercept?

e.	What does the y-intercept represent?

f.	Assuming this growth trend continues, what will the price of gasoline be in the year 2018? How did

anonymous · Answer

Can you figure out a on your own?

anonymous · Answer

1997

anonymous · Answer

No, the problem specifically states that 1997 would be x = 1. 
So what would x=4 be?

anonymous · Answer

would it be 1996

anonymous · Answer

4 is 3 more than 1. What year is 3 more than 1997?