Square Root Functions Answers
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1
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Check your answer. Did you identify these three errors correctly?
A
The student did not switch both instances of x with y. He should have written x = y2 + 12y.B
He wrote only the principal square root instead of using the ± sign.C
The domain is incorrect. For the radicand to be greater than or equal to zero, x must be less than or equal to zero. It should be x 0.
2
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Domain: x ≤≥
A
<B
>C
≤D
≥3
-5-115
A
-5B
-1C
1D
54
ln > [___]
Answer:
10
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