f(-3) = --3 +4 = 3+4 =7
f(-2) = --2 +4 =2+4 =6
f(-1) =--1 +4 = 1+4 =5
f(1) = -1 +4 =3
Range :{3,5,6,7}
Choice A
If we substitute x = -3 in f(x) we have --3 + 4 = 7 which is one element in the range.
Doing the same calculation for x , -2, -1 and 1 we get 6, 5 and 3
Answer is choice A
