Inverse functions

1. 1.
   f(x) = 4x + 0 and g(x) = 4x. Find f(g(-2)).
2. 2.
   f(x) = 6x − 3 and g(x) = 3x. Find f(g(-2)).
3. 3.
   f(x) = 3x − 4 and g(x) = 3x. Find f(g(0)).
4. 4.
   f(x) = 4x + 4 and g(x) = 2x. Find f(g(2)).
5. 5.
   f(x) = 2x − 4. Which is the inverse function f⁻¹(x)?
   a)2x + 4b)x / 2 − 4c)(x + 4) / 2d)(x − 4) / 2
6. 6.
   f(x) = 4x − 3. Which is the inverse function f⁻¹(x)?
   a)x / 4 − 3b)(x − 3) / 4c)(x + 3) / 4d)4x + 3
7. 7.
   f(x) = 3x + 5 and g(x) = 2x. Find f(g(1)).
8. 8.
   f(x) = 6x − 3. Which is the inverse function f⁻¹(x)?
   a)(x + 3) / 6b)6x + 3c)(x − 3) / 6d)x / 6 − 3
9. 9.
   f(x) = 2x + 0 and g(x) = 3x. Find f(g(1)).
10. 10.
    f(x) = 4x − 4. Which is the inverse function f⁻¹(x)?
    a)x / 4 − 4b)(x + 4) / 4c)4x + 4d)(x − 4) / 4
11. 11.
    f(x) = 2x − 4 and g(x) = 2x. Find f(g(2)).
12. 12.
    f(x) = 5x + 3. Which is the inverse function f⁻¹(x)?
    a)(x − 3) / 5b)(x + 3) / 5c)x / 5 + 3d)5x − 3
13. 13.
    f(x) = 6x + 8. Which is the inverse function f⁻¹(x)?
    a)(x − 8) / 6b)6x − 8c)x / 6 + 8d)(x + 8) / 6
14. 14.
    f(x) = 2x − 4 and g(x) = 4x. Find f(g(4)).
15. 15.
    f(x) = 5x + 6. Which is the inverse function f⁻¹(x)?
    a)5x − 6b)(x − 6) / 5c)x / 5 + 6d)(x + 6) / 5
16. 16.
    f(x) = 3x + 0 and g(x) = 3x. Find f(g(6)).
17. 17.
    f(x) = 2x + 8 and g(x) = 3x. Find f(g(1)).
18. 18.
    f(x) = 6x − 2. Which is the inverse function f⁻¹(x)?
    a)(x − 2) / 6b)x / 6 − 2c)6x + 2d)(x + 2) / 6
19. 19.
    f(x) = 5x − 5 and g(x) = 2x. Find f(g(5)).
20. 20.
    f(x) = 4x − 5 and g(x) = 2x. Find f(g(1)).

Free maths worksheets and practice: rocketdigits.com/learn/inverse-functions