SOLUTION: Hi, I need help with another problem. The question is: Is f(4) a zero of the function: f(x)=3x-12? why or why not. How would I figure that out and what is a zero of a function? Tha

Question 238284: Hi, I need help with another problem. The question is: Is f(4) a zero of the function: f(x)=3x-12? why or why not. How would I figure that out and what is a zero of a function? Thank you!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Is f(4) a zero of the function: f(x)=3x-12? why or why not.
Sub 4 for x
f(4) = 3*4 - 12 = 0
So it is.
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How would I figure that out and what is a zero of a function?
It depends on the type of function. You can always sub a value and see if it is a zero.
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