QUESTION 3
The given relation is
(-4,7), (-3,5), (1,4), (3,-8), (5,-11)
There is no x-value that appears more than once in the relation.
Hence the relation is a function.
Since each x-value has different y-values, the relation is a one-to-one function.
QUESTION 4
The given relation is
(-4,8), (-2,4), (0,1), (2,4), (4,8)
There is no x-value that appears more than once in the relation.
Hence the relation is a function.
Since two different x-values, -2 and 2 has the same y-value of 4, the function is many-to-one.
QUESTION 5
The given relation is
(-2, 1), (-2,3), (0,-3), (1,4), (3,1)
There is an x-value that appears more than once in the relation.
[tex]-2[/tex] alone has two different y-values.
Hence the relation is NOT a function
