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Anonymous Anonymous
  • 26-04-2015
  • Mathematics
Answered

What is the domain of \(\sqrt{8-8x}\)

please use interval notation. Thanks.

Verified Answer :

bookgirl9632
bookgirl9632 bookgirl9632
  • 26-04-2015

To find the domain of a function with a root, you set it ≥ 0
So, the equation will look like this:
8 - 8x ≥ 0
-8x ≥ 8
-8x ÷ 8 ≤ 8 ÷ -8
x ≤ 1
Therefore, the domain is
(-∞, 1]

Answer Link
konrad509
konrad509 konrad509
  • 26-04-2015

\(8-8x\geq0\\ 8x\leq8\\ x\leq1\\ x\in(-\infty,1]\)

Answer Link

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