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alex41 [277]
3 years ago
5

Find the domain and range of the function y = √x-3 + 6

Mathematics
1 answer:
Darya [45]3 years ago
8 0

Answer:

Domain: [3,\infty)

Range: [6,\infty)

Step-by-step explanation:

I assume you mean y=\sqrt{x-3} +6?

Take note of how x cannot be less than 3 because it would result in a negative number under the radical, which isn't real. However, x CAN be 3 because \sqrt{3-3}+6=\sqrt{0}+6=0+6=6 which is real.

Therefore, the domain of the function is [3,\infty)

As for the range of the function, we saw previously that the minimum of the domain resulted in the minimum of the range, which was 6.

Therefore, the range of the function is [6,\infty)

See attached graph below for a visual.

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Answer:

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Step-by-step explanation:

If the first person gets x dollars:

the next person gets 20 more, so x + 20 dollars

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We add all these allocations together, and we get $500

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So the first person gets $95.

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And the fourth must get $155

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