Answer:
a) [tex]y=\frac{x^{3}+2x^{2} -9x+18}{x+3}[/tex] .
Substitute all the values in the given relation.
The steps and table is attached below.
b) The relation is not a function.
Since the x =0 and x=3 has the same value. A relation is function when each input has only exact one output. refer the on-to diagram uploaded.
c) The domain is the set of all input values that can be applied into a function y or f(x).
Here all the x values -4,-3,-,-1,0,1,2,3,4 [-4,4] is the domain.
