tolong bantu jwb ya kak besrta caranya

Kelas 8 Matematika
Bab Fungsi

f(x) = 2x - 3

Domain = { -1, 0, 1 }

f(-1) = 2 . (-1) - 3
f(-1) = -2 -3
f(-1) = -5

f(0) = 2 . 0 - 3
f(0) = -3

f(1) = 2 . 1 - 3
f(1) = 2 - 3
f(1) = -1

f(2) = 2 . 2 - 3
f(2) = 4 - 3
f(2) = 1

Range = { f (x) | -5 <= f(x) < 1 }

✩✩ B ✩✩