Respuesta :

TDBGYT

The equation would equal Axf+f

We were given [tex]f(x)=3x +1 [/tex]

To find [tex] f(a+1) [/tex], just plug in
[tex] (a+1)[/tex]wherever you see [tex]x [/tex]

[tex]f(a+1)=3(a+1)+1 [/tex]

[tex]f(a+1)=3a +3+1 [/tex]

[tex]f(a+1)=3a +4 [/tex]