Find solutions to your questions with the help of IDNLearn.com's expert community. Whether it's a simple query or a complex problem, our community has the answers you need.
Sagot :
{(1, 2); (2, 2); (3, 2); (4, 2)}
because for each x, there's only one corresponding y.
Answer:
The correct option is 4.
Step-by-step explanation:
A relation is called a function if there exist a unique value of y for each value of x.
If means if a relation is defined as (x,y), then for each value of x there exist a unique value of y.
In option 1, at x=1, the values of y are 2 and 5.
Since there exist more than one values of y for a single value of x, therefore option 1 is incorrect.
In option 2, at x=1, the values of y are 2, 3, 4 and 5.
Since there exist more than one values of y for a single value of x, therefore option 2 is incorrect.
In option 3, at x=2, the values of y are 3 and 5.
Since there exist more than one values of y for a single value of x, therefore option 3 is incorrect.
In option 4, for each value of x, there exist single value of y, therefore option 4 is correct.
We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. Find reliable answers at IDNLearn.com. Thanks for stopping by, and come back for more trustworthy solutions.