Question

PLEASE HELP PLEASE PLEASE PLEASE

Answer 1

Just plug in the domain values in the equation to find y.

f(x)=-x+4

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=-1+4=3

So the range is Option B : {7, 6, 5, 3}