Jawaban :
daerah asalnya x= {1, 2, 3, 4} keterangan: R= bilangan asli.
range { -4, -3, 0, 5}
caranya daerah asalnya subtitusi ke persamaan f(x) = x^2 - 2x -3
range { -4, -3, 0, 5}
caranya daerah asalnya subtitusi ke persamaan f(x) = x^2 - 2x -3
x={-1,0,1,2,3,4}
f(x) = x²-2x-3
f(-1) = -1²-2*-1-3
= 1+2-3
= 0
f(0) = 0²-2*0-3
= -3
f(1) = 1-2-3
= -4
f(2) = 4-4-3
= -3
f(3) = 9-6-3
= 0
f(4) = 16-8-3
= 5
range ={-3,-4,0,5}
f(x) = x²-2x-3
f(-1) = -1²-2*-1-3
= 1+2-3
= 0
f(0) = 0²-2*0-3
= -3
f(1) = 1-2-3
= -4
f(2) = 4-4-3
= -3
f(3) = 9-6-3
= 0
f(4) = 16-8-3
= 5
range ={-3,-4,0,5}