Posted by **drew** on Monday, February 4, 2013 at 11:48am.

What is the range of the inverse of relation {(1, 7), (2, -4), (5, 6), (2, 8)}?

A. {1, 2, 5}

B. {-4, 6, 7, 8}

C. {1, 5}

D. {-4, 7, 8}

B

- algebra -
**Steve**, Monday, February 4, 2013 at 11:53am
range of R^{-1} is domain of R

(A)

- algebra -
**drew**, Monday, February 4, 2013 at 12:00pm
could you explain the steps?

- algebra -
**Steve**, Monday, February 4, 2013 at 2:32pm
what steps? They gave you a relation. Take the set of the 1st element of each pair.

If you don't know how to find the domain/range of a relation when they give you each element and its image, you are deep in it.

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