Functions and Logarithms

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Presentation transcript:

Functions and Logarithms Section 1.5

More Function Information… One-to-one function: The y-values are different if the x-values are different Horizontal line test Identity function: the result of composing a function and its inverse (f ο g)(x) = (g ο f)(x) = x Page 33 Exploration 1

Finding Inverses and Verifying Inverse Functions y = -2x2 + 4

Logarithmic Functions Inverse of the exponential function Common log: log x Natural log: ln x Properties of logarithms Change of base formula

Page 39 10. 12. 19.

Page 39 38. 39.

Pages 39-40 (3, 7, 15, 23, 33, 37, 41, 43)