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sasho [114]
3 years ago
8

Which of the sets of ordered pairs represents a function? A = {(1, -2), (3, -5), (5, 2), (7,5)} B = {(4, 2), (4, -2), (9,3), (9,

-3)} Only A
Only B
Both A and B
Neither A nor B​
Mathematics
2 answers:
Oxana [17]3 years ago
8 0
Only A make sure your (x) doesn’t repeat only (y) can repeat
Rufina [12.5K]3 years ago
6 0
Answer: only A

all of A’s inputs are different but B’s repeats 4 and 9 making it not a function, so its only A
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A. 1/9

EXPLANATION

When we have an expression with a negative exponent we can solve it by "flipping" the fraction and solving with the positive exponent:

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In this problem we have to find:

f(-2)=3^{-2}

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