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Functions and Graphs 2
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B
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Result
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Choose the correct answer to each question

1.
 The domain of the function y= x−1 4− x 2 is the set of all real numbers except which of the following numbers?
−2
1
±2
1, ±2
Answer: ± 2
2.
 Which of the following graphs is odd?
Answer:
3. Which of the following linear equations is that of a vertical line?
x=y
2=y
y= 1 2
x=− 3 4
Answer: x = − 3 4
4. Which of the following lines does not define y as a function of x?
a vertical line
a horizontal line
both a vertical line and a horizontal line
neither a vertical line nor a horizontal line
Answer: a vertical line
5. Which of the following linear functions has a slope of 1 2 ?
2y−x=7
1 2 y−x=7
y+ 1 2 x=7
2y+x= 1 2
Answer: 2 y − x = 7
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