Question

Part 1: Create a relation of five ordered pairs that is a function. In complete sentences explain why this relation is a function.
Part 2: Create a relation of five ordered pairs that is not a function. In complete sentences explain why this relation is not a function.

can some one please help me

Answer 1

im like so lost with this right now

Answer 2

part 1 : (X,Y) 5 ordered pair which are a functions is (1,2) (2,3) (3,4) (4,5) (5,6). this is a function because Y = X +1 is satisfied by all pairs . hence this relation is a function

Answer 3

Thank you do u know the second one also i got the first one but the second one is the one that i dont understand

Answer 4

part 2 : (X,Y) 5 ordered pairs which are not function is (1,2) (1,3) (3,4) (4,3) (3,5) This is not a function as values in X have multiple values in Y. Prerequisite for functions is that for any value of X only 1 value of Y possible

Answer 5

But vice versa not true means1 value of Y can be attained by multiple values of X.

Answer 6

when you plot a relation , it is only a function if it passes the vertical line test
{ no x should have two values of y }