PLEASE HELP PLEASE PLEASE PLEASE
Just plug in the domain values in the equation to find y.f(x)=-x+4f(-3)=-(-3)+4=3+4=7f(-2)=-(-2)+4=2+4=6f(-1)=-(-1)+4=1+4=5f(1)=-1+4=-1+4=3So the range is Option B : {7, 6, 5, 3}