Answer:
plug in 2 for x
Step-by-step explanation:
square root of 10^2 - 2^2
square root of 96
2.3 is smaller than 2.6: we can see it just by looking at the digits from left to right.
now, where does 2

stand?
its fraction part is equal to
do that means that 2

=2.8
which is bigger than 2.6
so the final order is
2.3 2.6 2
1.7*(x2+9)0.5+(10-x)=min
Also, the 2 is an exponent.
This is a function, imagine if there were a line going up and down through every point, if one of those lines hits 2 points then it's not a function