So basically your doing unit rates? Well guess what, I'm studying about that also, and I have a little understanding about unit rates, have you done ratios before?
No because In the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y,
1.7*(x2+9)0.5+(10-x)=min
Also, the 2 is an exponent.
Answer:
1 and 3 are 47 degrees and 2 is 133 degrees