# algebra

posted by .

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 -

range of R-1 is domain of R
(A)

• algebra -

could you explain the steps?

• algebra -

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.

## Similar Questions

1. ### algebra

1 (a) A function passes through the points (0, -5), (1, 0), (2, 7). Use finite differences to determine the equation of the function. (b) Draw the graph of the function. (c) Draw the inverse on the graph. (d) Show at least two different …
2. ### algebra ll

find the range of the relation (-1,4),(2,5), (3,5)then determine if the relation is a funtion or not thank u
3. ### Set theory

consider the relation R=[(1,2),(2,5),(3.10),(4,17),(5,26)]. find the i)range ii)domain iii)inverse
4. ### algebra

Find the domain and range of the relation, and state whether or not the relation is a function. {(3, 9), (3, 10), (3, 11), (3, 12)}
5. ### math

indicates required items An operation * is defined by the relation x*y = 5x + 3y – 4xy. Evaluate [2*(-1) ] A. 15 B. 10 C. 8 D. -3 A B C D An operation * is defined by the relation x*y = 5x + 3y – 4xy. Evaluate (3*2)*4 A. -15 B. …
6. ### Algebra-I'm still stuck

The one-to-one function f is defined by f(x)=(4x-1)/(x+7). Find f^-1, the inverse of f. Then, give the domain and range of f^-1 using interval notation. f^-1(x)= Domain (f^-1)= Range (f^-1)= Any help is greatly appreciated. Algebra …
7. ### Algebra

Find the range of the relation [(1, -4), (2,5), (3,5)]. Then determine whether the relation is a function.
8. ### Algebra 1 (Reiny or Kuai)

Give the domain and range values of each relation. Tell whether the relation is a function. The x-values are -3, -2, -1, -2. The y-values are 9, 6, 3, 0. A: D: {-3, -2, -2}; R: {9, 6, 3, 0} No, this relation is not a function?
9. ### Math Questions

1.) What is the inverse of the relation (3, -1), (2. 5), (-4, -4)?