1 is this a function 2 what is its domain 3 what is its


Consider the equation

y= 1 if x is rational

= 0 if x is irrational

1) Is this a function?

2) What is its domain?

3) What is its range?

4) What is its y-intercept, if any?

5) What are its x-intercepts, if any?

6) Is it even, odd, or neither?

7) How would you describe its graph?

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Basic Computer Science: 1 is this a function 2 what is its domain 3 what is its
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