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Projects - Cengage Learning

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Appendix C C-19<br />

MINI PROJECT<br />

A Graphical Approach to Composition of Functions<br />

As we saw in this section, the iteration process can be carried out either algebraically<br />

or graphically. Composition of functions can also be represented<br />

graphically. The accompanying figure shows the graphs of two functions<br />

f and g, the line y x, and an input a. Use the figure and the ideas of this section<br />

to discover the coordinates of the four indicated points. In particular, explain<br />

how to find the point (a, g[ f(a)]) on the graph of the composite function g f.<br />

y<br />

y=x<br />

y=g(x)<br />

y=ƒ<br />

a<br />

x

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