The second option represents a function. It represents a function because x does not repeat, meaning x is not on the table more than once and does not have a different output.
N = 24 is your answer
hope this helps :)
<span>The answer would be (f(x) = (x – 8)2 – 56)</span>
2: 4 is a factor and multiple of 8. 8 and 4 is also even numbers so is is most likely to be divisible by any number
