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defon
3 years ago
13

Please help 20 POINTS. Problem below

Mathematics
1 answer:
sesenic [268]3 years ago
5 0

f(x):  y = 9x² - 12

f⁻¹(x):  x = 9y² - 12

    x + 12 = 9y²

     \frac{x+12}{9} = y^{2}  

     \sqrt{\frac{x+12}{9}} = |y|     ; x ≥ -12

     +/-\sqrt{\frac{x+12}{9}} = y

Answer: C

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