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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: 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

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