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lisabon 2012 [21]
3 years ago
11

If f(x)=4/3x-9 what is f^-1(-3)

Mathematics
1 answer:
jolli1 [7]3 years ago
4 0

9514 1404 393

Answer:

  4.5

Step-by-step explanation:

The value of x that makes f(x) = -3 is ...

  4/3x -9 = -3

  4/3x = 6 . . . . . . add 9

  x = 6(3/4) = 18/4 = 9/2 = 4.5 . . . . multiply by 3/4

f^-1(-3) = 4.5

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