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What is the relationship of a domain and a function?
A function is a rule that assigns a single value to each element in a domain.A function is a rule that assigns a single value to each element in a domain.A function is a rule that assigns a single value to each element in a domain.A function is a rule that assigns a single value to each element in a domain.
When can a graph represent a function?
A graph represents a function if and only if every input generates a single output.
How do you find the compositeof a given function?
The term "composition" refers to applying one function after another. It is not usually used for a single function, although you can of course apply the same function twice.
Can a linear function not have a y-intercept?
No, it would have to be parallel to the y-axis, making the slope undefined and having only a single x-value. Not a linear function.
What is it called when an equation describes a function?
I don't think there is a special name for that. Note that not all functions can be described by a single equation - at least, not in a natural way. For example, a function may be described by parts.
