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Rama09 [41]
3 years ago
12

Which of the following represents a function?

Mathematics
1 answer:
alexgriva [62]3 years ago
8 0
Answer:
(2,3),(4,3),(-2,-3),(-4,-3)
Explanation:
The x value can not repeat but the y value can
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Let t represent Todd's age now.
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_____
You can also work this by considering "ratio units." 3 years ago, the ratio of their ages was 4:1, a difference of 3. That difference corresponds to 81 years, so each "ratio unit" represents 81/3 = 27 years. Todd's age then was 1 ratio unit, 27 years. Now, Todd's age is 30.
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