Question

Suatu fungsi dinyatakan dengan f(x) = 2(1-x) dengan daerah asal {-2,-1,0,1,2}. Tentukan daerah hasil dari fungsi tersebut! Tolong kasih cara ya...

Answer 1

f(-2) = 2(1-(-2)) = 6

f(-1) = 2(1-(-1)) = 4

f(0) = 2(1-0) = 2

f(1) = 2(1-1) = 0

f(2) = 2(1-2) = -2

Answer 2

f(-2) = 2 (1 + 2) = 2 (3) = 6

f(-1) = 2 (1 + 1 ) = 2 (2) = 4

f(0) = 2 ( 1 - 0 ) = 2 (1) = 2

f(1) = 2 ( 1 - 1 ) = 2 (0) = 0

f(2) = 2 ( 1 - 2 ) = 2 (-1) = -2

Range {x Ι -2 ≤ x ≤ 6 I x ∈ R}