1. (a) What is the difference between a relation and a function?
(b) How can you determine if a relation is a one-to-one function? Give two reasons

Function h is defined by h(x) = 3 x 2 - 7 x – 5. Find h(x - 2).

Functions f and g are defined by f(x) = - 7 x - 5 and g(x) = 10 x – 12. find (f + g)(x)
In (9) above find f(1)/g(2).