Question

For the functions f(x)=4x+5 and g(x)=6x+4,find (f•g)(0)and (g•f)(0)

Answer 1

Answer:

Step-by-step explanation:

f(x)=4x+5

g(x)=6x+4,

first: (f*g)=(4x+5) (6x+4)=24x²+46x+20

next:(f*g)(0)=((g*f)=24x²+46x+20=20

Answer 2

Hi,

f°g means :  apply first g then f . so calculate  "g" and then use result as "x" in f.  

g°f  means :   you apply first  f then g  

so :  f°g =    4 (g (x)) +5  

4 (6x+4) +5  = 24x+16+5 = 24x+21