Question

Is {(-1,2),(7,1)(0,-3)} a function?

Answer 1

`(x,f(x)) = { (-1,2), (7,1), (0,-3) }` is a function

Explanation:

No value of `x` has more than one corresponding value of `f(x)`
`color(white)("XXXX")`(which is the basic definition of a function).