Question

Find the range of ƒ(x) = –x + 4 for the domain {–3, –2, –1, 1}.

A {-7, -6, -5, 3}
B {7, 6, 5, 3}
C {-7, -6, -5, -4}
D {7, 6, 5, 4}

Answer 1

your answer to the question is B 

Answer 2

Replace x with the given domains and solve:

- -3 + 4 = 3+4 = 7

- -2 + 4 = 2+4 = 6

- -1 + 4 = 1+4 = 5

-1 + 4 = 3

Range = B (7,6,5,3)