Question

Tolong yg no 6 yaa..pleaasee ☺☺☺☺☺☺☺☺

Answer 1

F(x-1)=3x+5 /4
misal t=x-1
=> -x = -t-1
x=t+1
f(x)=3(t+1) + 5 / 4
= 3t + 3 +5 / 4
=3t +8 / 4

f(4)= 3(4) + 8 /4
=12+8 /4
=20/4
=5

semoga membantu :)