Question 142621: Could you please help me with a few problems,that I'm having trouble with? Thank you for your time in advance.
Find the zero of the linear function is what it says.
1) f(x)= x + 5
2) f(x) = -x + 18
3) f(x) = 16 - x
4) f(x) = x - 6
Thanks again for people like you. Elle J
Found 2 solutions by solver91311, Edwin McCravy:
Answer by solver91311(24713)   (Show Source):
You can put this solution on YOUR website! A zero of a function is the value of the independent variable ( in these cases) that makes  .
I suspect you may be having some difficulty with function notation, so here is a little tutorial:
 ,  ,  , and the like are used to represent functions.  means "the value of the function at " So for your first example,  ,  ,  ,  , and so on. Furthermore, if  , then  is a zero of the function. Your job is to find that value of for each of your functions so that .
The process is to set the function statement equal to zero and then solve for the variable, thus (for your problem 1):
Add  to both sides:
So, if  then  , therefore is a zero of
Using this method, you should be able to handle the other three problems.
Answer by Edwin McCravy(20064)  (Show Source):
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