consider the graph of equation y=llxl - 8l.?

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consider the graph of equation y=llxl - 8l.?

Find the domain D for the function y=f(x). And Please write answer in interval notation.

2007-10-17 18:10:25 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

D = (-∞,∞)

2007-10-17 18:24:12 · answer #1 · answered by Demiurge42 7 · 0⤊ 0⤋

Let u=IxI, then we have y=I u-8 I
The domain of this graph is all real #.
Look at IxI, x can be any real # too. The abs sign makes sure the range is a positive #. So the domain is all real #s.
(-00,00).

2007-10-18 01:41:45 · answer #2 · answered by mlam18 6 · 0⤊ 0⤋