Suatu fungsi dirumuskan f(x) = 2x + 3. Jika daerah asalnya {-1, 0, 1, 2}, maka daerah hasilnya adalah ... *
a. {1, 3, 5, 7}
b. {1, 3. 6, 7}
c. {3, 5, 6, 7}
d. {4, 5, 6, 7}![]()
a. {1, 3, 5, 7}
b. {1, 3. 6, 7}
c. {3, 5, 6, 7}
d. {4, 5, 6, 7}
f(x) = 2x + 3
f(-1) = 2(-1) + 3
= -2 + 3
= 1
f(0) = 2(0) + 3
= 0 + 3
= 3
f(1) = 2(1) + 3
= 2 + 3
= 5
f(2) = 2(2) + 3
= 4 + 3
= 7
Jawabannya A {1, 3, 5, 7}
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