Question

2. Which of the following shows a one-to-one correspondence?
a. {(1,4), (1,6), (1,8)] b. {(1,2), (3, 4), (5,6)} (C. {(1,5), (2,5), (3,5)} d. {(1, 3), (3, 1), (3,3)}
3. What type of relation is {(1, a),(2, b), (3, c), (4, d), (5, e)?
a. One-to-one
b. Many-to-one
c. One-to-many d. Many-to-many
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Answer 1

Answer:

sorry but I don't know

I want point

and thank you