Prove algebraically that the following are even, odd, or neither. (3 pts each) 7. f ( x) = xx1 8. f ( x) =2 F12 For 9-17, if f(x) = 2x - 5 and g(x) = x2 + 2x - 3, find the following... 9. f(g (2 ) ) = (2 pts each) 10. g (f (-1) ) = 11. (f . g) (0) = 12. f- 8 13. Ax + 2 ) = 14. (f + g) ( 2) = 15 . [ ) ( x ) = 16. (fg)(-2) = 17. (f + g) (x) = For 18 and 19, use the table of H(t) and R(t) shown below to find the indicated operation. (2 pts each) 1.0 1.5 2.0 2.5 3.0 3.5 t 1.0 1.5 2.0 3.0 3.5 H(t) 4.8 2.5 1.0 -0.2 -1.5 -3.0 R (1) 3.5 2.5 1.5 4.8 1.2 1.0 18. (H- R) (3.5) = 19. H(R(1.5)) =