The answer is 72 (--> second choice).
I can prove it without calculator so you believe me:

If the last two digits of the number are divisible by four
<span>No simplification exists, Root remains :
</span>sqrt(15y)
Answer:
See below
Step-by-step explanation:
If a function is bijective and 1-to-1, then it will have an inverse function. Consequentially, they will be symmetrical about the line
, which is a diagonal line passing through the origin at a 45 degree angle.
None of the graphs look correct though, but it also seems that some options are cut out, so make sure to choose the correct graph given the characteristics I've previously described.