Question 470116
Find the inverse of the function below, if one exists. 
{(-9,5),(-7,4),(-3,-7),(-1,7),(0,-4)} 
a. {(-7,-3),(-4,0),(4,-7),(5,-9),(7,-1)}
b. {(-7,-1),(-5,-9),(-4,-7),(4,0),(7,-3)}
c. {(-7,1),(-5,9),(-4,7),(4,0),(7,3)}
d. no inverse exists
e. {(0,4),(1,-7),(3,7),(7,-4),(9,-5)} 
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Answer: a
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Cheers,
Stan H.