Question

If A = {-2, -1, 0, 1, 2} f: A B is an onto function defined by f(x)=x2+x+1 then find B
please answer fast and don't answer useless please answer with explanation​

Answer 1

Answer:

B={3,1,-1,3,7}

Step-by-step explanation:

A=-2 then B=(-2)^2-2+1=4-2+1=3

A=-1 then B=1-1+1=1

A=0 then B=0+0-1=-1

A=1 then B=1+1+1=3

A=2 then B=4+2+1=7