an investment is worth $2162 in 2007.By 2011 it has grown to $3810. Let y be the value of the investment in the year x, where x=0 represents 2007.Write a linear equation that models the value of the investment in the year x.

Question

tkhunny · Answer

It's linear.  That's code for changing the same amount at each stage.
2007 2162
2008 2162 + One Chunk
2009 2162 + two chuncks
2010 2162 + three chunks
2011 2162 + four chunks = 3810

2011 is the key

2162 + 4(Chunk) = 3810

Solving

4(Chunk) = 3810 - 2162 = 1648

Chunk = 1648/4 = 412

Can you now write the linear formula suggested?

anonymous · Answer

yes now i see thanks