Posted by **Alicia** on Friday, September 17, 2010 at 2:09pm.

(a) In order to express the function y = 1010 x + 4, as a composition of two functions the outer of which is an exponential function,

we would let u be equal to the inner function, u = ,

and then write y as a function of u, as follows: y = .

(b) In order to express the function P = √{ 18 t9 + 3 }, as a composition of two functions the outer of which is a root function,

we would let u be equal to the inner function, u = ,

and then write P as a function of u, as follows: P = .

(c) In order to express the function w = 6 ln( 1 r− 5 ) as a composition of two functions the outer of which is a logarithmic function,

we would let u be equal to the inner function, u = ,

and then write w as a function of u, as follows: w = .

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