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Serga [27]
3 years ago
13

What is the range and domain of: y= 4|x|-1

Mathematics
1 answer:
stich3 [128]3 years ago
5 0
Function: y = 4|x| - 1.


Domain: R (all real numbers).


Range: As we know, the absolute value of x is always a non-negative number:

|x| >= 0

4|x| >= 4 * 0

4|x| >= 0

4|x| - 1 >= -1

y >= -1 <----- this is the range


I hope this helps. =)

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