Can someone go through this with me? The average value of a certain automobile was $13,740 in 1994 and depreciated to $6960 in 1998. Let y be the average value of the automobile in the year x, where x=0 represents 1994. Write a linear equation that models the value of the automobile in terms of the year x.

Question

anonymous · Answer

@thomaster 
@AravindG 
@bahrom7893 
@satellite73 
@whpalmer4 
@Loser66

anonymous · Answer

@jim_thompson5910 
@Compassionate

whpalmer4 · Answer

If 1994 is year 0, what is year 1998?

anonymous · Answer

4

whpalmer4 · Answer

Okay, if the value decreases by 13740-6960 in 4 years, what is the slope of the line?

anonymous · Answer

-1695?

anonymous · Answer

So y=-1695x+13740
?

whpalmer4 · Answer

Does that equation give you the known values?  13740 at year 0, and 6960 at year 4?

anonymous · Answer

Yes

whpalmer4 · Answer

Then it is probably correct.  If it didn't, it would certainly not be correct.