Use f(2)=9z+12 and g(z) = 2z - 15 to find (fog)-¹(z) 1. (Jag) ¹(2)=(-123) 18 2. (fog)(2)- 3. (fog)(x) = 4. (fog) ¹(3)=- 5. (fog)(2) = 123 6. (fog)-¹(s) =— (+123) 18 7. None of these 1 18 123 18

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