Quiz review - composite functions & inverse functions

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No - they are not inverses

Are the functions inverses? y=12x-3 and y=(x-3)/12

Yes - they are inverses

Are the functions inverses? y=3x+2 and y=(x-2)/3

f⁻¹(x) =5x−4

Find the inverse of f(x) = (x+4)/5

f⁻¹(x) = ½(x+3)

Find the inverse of f(x) = 2x−3

f⁻¹(x) = √(x−9)

Find the inverse of f(x) =x²+9

{(2,3), (-3,4), (5,7)}

What is the inverse of {(3,2), (4,-3), (7,5)}?

y=x

What line is the axis of symmetry for inverse functions?

-2

f(x) = x² + 5 and g(x) = x - 7 find (g ∘ f)(0)

x² - 2

f(x) = x² + 5 and g(x) = x - 7 find (g ∘ f)(x)

f⁻¹(x) =−3+√(x−1)

f(x) = (x+3)²+1

15

f(x) = x + 9 and g(x) = 2x find (f ∘ g)(3)

14

f(x) = x + 9 and g(x) = 2x find (g ∘ f)(-2)

30

f(x) = x² + 5 and g(x) = x - 7 find (f ∘ g)(2)

x² - 14x + 54

f(x) = x² + 5 and g(x) = x - 7 find (f ∘ g)(x)


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