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Question 321994: what is the result of substituting a value for a variable in a function?
Answer by nyc_function(2741)   (Show Source):
You can put this solution on YOUR website! To evaluate a function, we insert a given x value, a number in the domain, and see what number we get, which is a number in a range.
SAMPLE:
f(x) = x + 2
Pick a number for x. Any number will do.
Say, x = 3.
f(3) = 3 + 2
f(3) = 5
Here, 3 is the number in the domain of the function and 5 is the range of the function.
Understand?
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