F(x)=2x+3. easy as that, just replace y with f(x)
3. Is alternate interior angles
4. Supplementary angles
5. Exterior angles
6. 76
7. 75
8. 114
9. 130
Hmm....
I know that the first answer is a coin, but I'm not too sure about the second one.
A is continuous
B is discrete
C is not a function
S is a function
