Question

Given the function f(x) = x + 3x + 4 , find the value of f(–1)

Answer 1

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

Answer 2

YOU JUST PLUG IN F(-1) INTO X AND THEN SOLVE
HOPE THAT AT LEAST HELPED :)

Answer 3

f(-1)=-1+3(-1)+4
=-1-3+4
=-4+4
=0

Answer 4

OOPS MY BAD YUR RIGHT PAT THNX :)

Answer 5

you are welcome.