Exponential and Logarithmic Functions Section 5.4.

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Presentation transcript:

Exponential and Logarithmic Functions Section 5.4

y = 2 x Jeff Bivin -- LZHS xy -21/4 ½ xy 1/4-2 ½ x = 2 y

How do we solve this exponential equation for the variable y? y = 2 x x = 2 y Jeff Bivin -- LZHS

LOGARITHMS exponentiallogarithmic b > 0 A > 0 Jeff Bivin -- LZHS

Natural Logarithms exponentiallogarithmic Jeff Bivin -- LZHS

exponentiallogarithmic Jeff Bivin -- LZHS

Evaluate Jeff Bivin -- LZHS

Evaluate Jeff Bivin -- LZHS

Evaluate Jeff Bivin -- LZHS

Evaluate Jeff Bivin -- LZHS

Solve for x log 2 (x+5) = = x = x = x Jeff Bivin -- LZHS

Solve for x log x (32) = 5 x 5 = 32 x 5 = 2 5 x = 2 Jeff Bivin -- LZHS

Evaluate log 3 (25) = u 3 u = 25 3 u = 5 2 ?????? Jeff Bivin -- LZHS find out how, tomorrow