McGraw Hill Integrated II, 2012
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McGraw Hill Integrated II, 2012 View details
6. Analyzing Functions with Successive Differences
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Exercise 53 Page 145

Substitute 4 for z.

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Practice makes perfect
To evaluate the given expression for z=4, we should substitute 4 for z in the given expression and then simplify.
|4-z|
|4- 4|
|0|
0