a f(2), f(-2 )
b. f (x + 2)
c. f (x) =11 x = ..?
1 .di ketahui f(x) = 2x +3 tentukan lah
Jawaban:
a. f(x) = 2x +3
f(2) =2.2+3
f(2)= 7
f(-2) =2x+3
f(-2)= 2.-2+3
=-1
b. f(x+2) =2.(x+2) +3
=2x+4+3
=2x+7
×=7/2
×=3.5
c.f(11)=2.11+3
= 22+3
=25
a f(2), f(-2 )
b. f (x + 2)
c. f (x) =11 x = ..?
1 .di ketahui f(x) = 2x +3 tentukan lah
Jawaban:
a. f(x) = 2x +3
f(2) =2.2+3
f(2)= 7
f(-2) =2x+3
f(-2)= 2.-2+3
=-1
b. f(x+2) =2.(x+2) +3
=2x+4+3
=2x+7
×=7/2
×=3.5
c.f(11)=2.11+3
= 22+3
=25