Question

Jika rumus fungsi f(x)=4x²-3,maka:
a.f(1)=4(....)²-3
=….-3
=….
b.f(-2)=….(-2)²-.....
=….-....
=….-....
=....
c.f(3)=….-....
=….-....
=….-....
=….
tolong bantuin dong kaka pake cara ya kaka

Answer 1

F(1)=4.1²-3=4-3=1
f(-2)=4.(-2)-3=-8-3= -11
f(3)=4.3-3=12-3=9

Answer 2

f(x) = 4x²-3 (setiap x diganti dengan angka yang ada didalam kurung)a.f(1)=4(1)²-3
=4-3
=1
b.f(-2)=4(-2)²-3
=4(4)-3
=16-3
=13
c.f(3)=4(3)²-3
=4(9)-3
=36-3
=33

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