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Mathematics
9th -
12thgrade
Inverse Functions + Composition of Functions
20 questions
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- 1. Multiple ChoiceFind the inverse of f(x) = -4x - 12f-1(x) = 4x - 3f-1(x) = -1/4x - 3f-1(x) = 1/4x + 3f-1(x) = -4x - 3
- 2. Multiple ChoiceFind the inverse of
f(x) = 1/4x - 7f-1(x) = 4x + 7f-1(x) = -4x + 28f-1(x) = -4x - 7f-1(x) = 4x + 28 - 3. Multiple ChoiceFind the inverse of
f(x) = -3x + 3f-1(x) = -3x + 1f-1(x) = -1/3x + 1f-1(x) = -1/3x - 1f-1(x) = 1/3x + 1 - 4. Multiple ChoiceWhen creating an inverse you must...Switch the x and ySolve for xDraw a graphdrop that NaeNae
- 5. Multiple ChoiceFind the inverse of f(x) = x2 - 5f-1(x) = √(x) + 5f-1(x) = ∛(x-5)f-1(x) =√(x+5)f-1(x) = x2 - 5
- 6. Multiple Choice9 - √1742√8
- 7. Multiple ChoiceWas the inverse function found correctly?no,yes
- 8. Multiple ChoiceWhat's the name of the inverse of g(x)?f(x)f-1(x)yg-1(x)
- 9. Multiple ChoiceFind the inverse of f(x) = (x - 7)/4f-1(x) = -4x + 7f-1(x) = -4x + 28f-1(x) = -4x - 7f-1(x) = 4x + 7
- 10. Multiple ChoiceIf the equation of f(x) goes through (1, 4) and (4, 6), what points does f-1(x) go through?(1, 4) and (4, 6)(-4, -1) and (-6, -4)(-1, -4) and (-4, -6)(4, 1) and (6, 4)
- 11. Multiple ChoiceWhat is the inverse of the given coordinates: (1, 2) (3, 8) (-3, 6)(1, 2) (3, 8) (-3, 6)(1, 2) (8, 3) (-3, 6)(-1, -2) (-3, -8) (3, -6)(2, 1) (8, 3) (6, -3)
- 12. Multiple ChoiceThe inverse has been reflected over which line?y = xy =1y = 0y = x + 1
- 13. Multiple ChoiceAre these the graphs of two inverse functions?YesNoNo way to tell
- 14. Multiple ChoiceWhen finding the inverse of a relation,
1st you replace f(x) with y
2nd switch the x's and y's
What do you do next?solve for yreplace y with f-1(x)solve for xfind the greatest common factor - 15. Multiple Choiceare these inverse functions?noyesno way to tell
- 16. Multiple Choicef(x) = 3x + 10
g(x) = x - 2
Find g(f(-10))-42-26-18None of these. - 17. Multiple Choicef(x) = 3x + 10
g(x) = x - 2
Find f(g(x))3x2 - 23x + 83x + 4None of these. - 18. Multiple Choicep(x) = 3x + 4
q(x) = 2x2
Find p(q(x))10x218x2 + 46x2 + 4 - 19. Multiple Choicef(x) = 3x + 10
g(x) = x - 2
Find g(f(x))3x + 83x - 23x + 4None of these. - 20. Multiple Choiceg(x)=3x+4
h(x)=3x-1
Find g(h(x))-9x+114x2+4x9x+19x+11 - Answer choicesTagsAnswer choicesTags