Answers

2014-11-24T22:20:35+08:00
It is to substitute a variable with given number or expressions. 

Example: f(x) = 2x + 4 for x = 3
just replace the the variable "x" with 3...

f(3) = 2(3) + 4 = 10

Answer: f(3) = 10

hope it helps.. :)


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