Question

Please someone help me im begging you dont ignore this i need help and i cant understand how to do it please explain it to me

Answer 1

see below

Explanation:

domain is the certain values x can be

substitute -1,0,1 and 2 in for x

f(-1)=-3-1= -4

f(0)=0-1=-1

f(1)= 3-1=2

f(2)=6-1=5