diketahui f x → 2× + 3
Jawaban:
a. rumus f
f(x)=2x+3
tabel fungsi
x f(x)
-2 2(-2)+3=-4+3=-1
-1 2(-1)+3=-2+3=1
0 2(0)+3=0+3=3
1 2(1)+3=2+3=5
2 2(2)+3=4+3=7
b. f(0)=2(0)+3=0+3=3
f(2)=2(2)+3=4+3=7
f(3)=2(3)+3=6+3=9
f(4)=2(4)+3=8+3=11
c. f(x) = 13
2x+3 = 13
2x = 13 - 3
2x = 10
x = 10
5
x = 2
Jadi, nilai x=2.
d. f(6)=2(6)+3=12+3=15
f(3)-f(0)=9-3=6
f(4)-f(1)=11-5=6
f(6)-f(2)=15-7=8
Semangat belajarnya jangan hanya menyalin ya.
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