Exercise: find (fog) and (gof).
given f(x) = 3x + 1 and g(x) = x+ 7​

Answers

• Réponse publiée par: nelspas422

  fog= 3x+1

  =3(x+7)+1

  =3×+21+1

  =3×+1

  goh=x+7

  =3x+1+7

  =3x+8
• Réponse publiée par: cleik

  (f+g)(x)=x²+3x-1

  Step-by-step explanation:

  f(x)=3x+1

  g(x)=x²-2

  (f+g)(x)= 3x+1+x²-2

  (f+g)(x)=x²+3x-1
• Réponse publiée par: homersoncanceranguiu

  1. (f o g)(x) = 3x+22

  (g o f)(x) = 3x+8

  2. (f o g)(x) = 3x+3

  (g o f)(x) = 3x+1

  Step-by-step explanation:

  1. (f o g)(x) = f(g(x))

  = f(x+7)

  = 3(x+7)+1

  = 3x+21+1

  = 3x+22

  (g o f)(x) = g(f(x))

  = g(3x+1)

  = 1(3x+1)+7

  = 3x+1+7

  = 3x+8

  2. (f o g)(x) = f(g(x))

  = f(3x+4)

  = 1(3x+4)-1

  = 3x+4-1

  = 3x+3

  (g o f)(x) = g(f(x))

  = g(x-1)

  = 3(x-1)+4

  = 3x-3+4

  = 3x+1
• Réponse publiée par: taekookislifeu

  1.)

  (f o g) (x) = f(g(x))

  = x+7

  = 3(x+7)+1

  = 3x+21+1

  =3x+22

  (g o f) (x) = g(f(x))

  = 3x+1

  =3x+1+7

  = 3x+8

  2.)

  (f o g) (x) = f(g(x))

  = 3x+4

  =3x+4-1

  = 3x+3

  (g o f) (x) = g(f(x))

  = x-1

  = 3(x-1)+4

  = 3x-3+4

  3x+1
• Réponse publiée par: nelspas422

  1.f^-1(x)=x-1/3

  2. g^-1(x)=x+2

  3. it has no inverse function

  4. f^-1(x)=x-7/2
• Réponse publiée par: 09389706948

  7.A 8.C 9.D 10.A answer
• Réponse publiée par: reyquicoy4321

  answer:

    D)  3x^3 +x^2 -18x -6

  Step-by-step explanation:

  The distributive property applies.

    (f·g)(x) = f(x)·g(x) = (3x +1)(x^2 -6) = 3x(x^2 -6) +1(x^2 -6)

    (f·g)(x) = 3x^3 -18x +x^2 -6 . . . . . eliminate parentheses

    (f·g)(x) = 3x^3 +x^2 -18x -6 . . . . put in standard form
• Réponse publiée par: taekookislifeu

  answer:

  1.f-gx

  2f+gx

  3.ggx

  4f.gx
• Réponse publiée par: aimeedelacruz24

  answer:

  4×+1

  Step-by-step explanation:

  f+g(×+2)→add the two functions together

  3×-1+(×+2)

  3×-1+×+2

  3×+×-1+2→combine like terms

  =4×+1
• Réponse publiée par: hannahleigh

  answer:

  Math ba yan

  Step-by-step explanation:

  i dont know po sorry