Choose if the following relations are functions or not functions.
{(4,-8), (2,-8), (-8,-8), (0,-8)} is
{(3,9), (-3,1), (5,3), (3,3), (10,14)} is
{(7,2), (8,-1.4), (4.5,-10), (7,2), (1.2,1.8)} is
{(0,0), (1,1), (2,2), (3,3), (4,4)} is
The given relations are:
1. {(4,-8), (2,-8), (-8,-8), (0,-8)} - This is a function because each input value has a unique output value.
2. {(3,9), (-3,1), (5,3), (3,3), (10,14)} - This is not a function because the input value 3 is associated with two different output values: 9 and 3.
3. {(7,2), (8,-1.4), (4.5,-10), (7,2), (1.2,1.8)} - This is not a function because the input value 7 is associated with two different output values: 2 and 2.
4. {(0,0), (1,1), (2,2), (3,3), (4,4)} - This is a function because each input value has a unique output value.