queenb6
queenb6
23-01-2017
Mathematics
contestada
inverse functions
f (x) = -3x +2 find f -1 (7)
Respuesta :
wizard123
wizard123
23-01-2017
[tex]y = f(x) \\ \\ x = f^{-1} (y)[/tex]
Therefore, set y = 7
[tex]y = -3x+2 = 7[/tex]
Solve for x
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