math

posted by .

If A = {a, b, c, d} and B = {-1, 0, 1} which of the following relations is a function from A to B.
a.(i) {(a, 0), (c, 1), (d, -1)}
b.(ii) {(a, -1), (b, -1), (c, 0), (d, 1)}
c.(iii) {(a, 1), (b, 1), (c, 0), (d, O)}
d.(iv) ({a, 1), (b, 0), (c, -1), (o.O), (a, -1)}
answer choice are
a.(i) and (iv)
b.(i) and (iii)
c.(ii) and Oii)
d.(iii) and (iv)
V

  • math -

    i is a one to one mapping, but all do not map. Where does b map to?
    ii is a one to one, each abcd maps to a unique map
    iii each a,b,c, d maps to a particular choice.
    iv how can (a) map to 1 and -1 and be a function? It cant.

    so ii, iii are functions. check my logic.
    So,

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra answer for checking

    relation or function? x^2 = 1 + y^2 This is a function because relations cannot be an equation right?
  2. Algebra

    Right now we are learning about functions, relations, etc. and I am kind of confused. Here is what I have to answer: Determine whether each of the following is a function. Identify any relations that are not functions. Domain A set …
  3. Algebra (please help)

    Which of the following relations has this characteristic: The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, …
  4. Math

    Which of the following relations has this characteristic: The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, …
  5. algebra

    Which of the following relations is a function?
  6. math

    Consider the following 6 relations on the set of real numbers: A) y=2x−5, B) x2+y2=1, C) x=20−2y, D) y=10−x2−−−−−−√, E) y=2x2−3x+4 and F) y=|x| How many of these relations …
  7. VERY URGENT MATH(Formalizing Relations & Functions

    What is the domain of the function below?
  8. math

    Which of the following relations is not a function?
  9. Math

    Give examples of three functions and three relations, using at least three different representations (e.g., symbolic representations, graphical representations, diagrams, tables of values, lists of ordered pairs). Use the definitions …
  10. Math 10- Relations & Functions

    1) write the following with two variables: F (x) = 4x - 8 2) Write the following function in notation: C= 14n + 5 3) Fow the following function, F (x) = 8x + 12: a) F (x) = 132 b) F (6)

More Similar Questions