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November 30, 2015
Posted by **LaTesha** on Wednesday, September 7, 2011 at 8:06pm.

- Pre Calculus -
**bobpursley**, Wednesday, September 7, 2011 at 8:14pmrate of change= 7-1)/(8-4)=6/4

f(x)=ratechange*x + b

f(4)=6/4 *4 + b or

1=6+b or b=-5

equation: f(x)=6/4 x -5