diketahui suatu fungsi f:x -> 2x - 3, dengan daerah asal D1 = {-3,-2,-1,0,1} a. gambar diagram panah fungsi itu b. nyatakan dalam himpunan pasangan berurutan p

f : x => 2x - 3
f ( -3 ) = 2.(-3) -3 = -6 - 3 = -9 ( -3, -9 )
f ( -2 ) = 2.(-2) -3 = -4 - 3 = -7 ( -2, -7 )
f ( -1 ) = 2.(-1) -3 = -2 - 3 = -5 ( -1, -5 )
f (0) = 2.0 - 3 = 0 - 3 = -3 ( 0, -3 )
f (1) = 2.1 - 3 = 2 - 3 = -1 ( 1, -1 )

a.
-3 —> -9
-2 —> -7
-1 —> -5
0 —> -3
1 —> -1

b. { ( -3, -9 ), ( -2, -7 ), ( -1, -5 ), ( 0, -3 ), ( 1, -1 ) }