jika f(x)=x-1,g(x)=2x-3,maka nilai f(3) + g(-2) adalah

Mapel : Matematika

Kelas : 8

Bab : Relasi dan Fungsi
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f(x) = x - 1

g(x) = 2x - 3

Maka, :

= f(3) + g(-2)

= (x - 1) + (2x - 3)

= (3 - 1) + [2(-2) - 3]

= 2 + [-4 - 3]

= 2 + (-7)

= 2 - 7

= -5 ✔

f(x) = x-1
f(3) = 3-1
= 2
g(x) = 2x-3
g(-2) = 2(-2)-3
= (-4)-3
= -7
f(3) + g(-2) = 2 + (-7)
= (-5)