Question

Which point could not be a part of a function that includes (0, -2), (1, 1), (-2, -8), (-1, -5), and (3, 7)?A:(5,25)B:(-2,-4)C:(-3,9)D:(-4,16)

Answer 1

A function f(x) maps an element from one domain to a unique range of elements:

As you can see (-2,-8) tell us that the value -2 corresponds with the value -8. Therefore:

B:(-2,-4) could not be a part of the function