SOLUTION: I am having a problem trying to understand how to find zeros of a function if the problem does not show an equation. What are the zeros of the following functions? 1st problem:

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Question 454920: I am having a problem trying to understand how to find zeros of a function if the problem does not show an equation.
What are the zeros of the following functions?
1st problem:
x=-2 y=14
x=-1 y=0
x=3 y=3
x=5 y=7
x=9 y=0
2nd problem:
x=1 y=10
x=2 y=20
x=3 y=5
x=4 y=0
x=5 y=15

Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
I am having a problem trying to understand how to find zeros of a function if the problem does not show an equation.
What are the zeros of the following functions?
1st problem:
x=-2 y=14
x=-1 y=0
x=3 y=3
x=5 y=7
x=9 y=0
2nd problem:
x=1 y=10
x=2 y=20
x=3 y=5
x=4 y=0
x=5 y=15
A zero of a function is simply any value of x
that corresponds to y=0.  Above I have colored red 
the cases where y=0.  There are two zeros of the
first problem, -1 and 9, for those are the values
of x that correspond to y=0. There is only one 
zero of the second problem, 4. 

Edwin