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Math Review: Variation & Composition Inverses

Understand direct and inverse variation equations, composition of functions, logarithmic conversions, and identifying one-to-one functions. Pracitce problems and explanations included.

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Math Review: Variation & Composition Inverses

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  1. Test Review:Variation-Composition-Inverses, Exp-Log Conversion Algebra II

  2. If x varies directly as z and k represents the constant of proportionality, what is the equation that models this variation?

  3. If y varies inversely as x and y=12 when x=10, find y when x=15.

  4. Find :

  5. What does it mean when you compose two functions and you get just ‘x’?

  6. Find:

  7. Find the inverse. Is it a function?

  8. Find the inverse:

  9. What test do we use to determine if a function is one-to-one?

  10. Which functions are 1-to-1?

  11. What is the inverse of:

  12. What is the inverse of:

  13. Convert the following to logs:

  14. Convert to exponential form:

  15. What is the Domain/Range of this graph?

  16. What is the Domain/Range of the Inverse of this graph?

  17. GOOD LUCK ON YOUR TEST!!!! STUDY STUDY STUDY!!!!

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