Which relation is a function? {(8, 1), (4, 1), (0, 1), (–15, 1)}
{(0, 1), (0, 2), (1, 2), (1, 3)}
{(–2, –12), (–2, 0), (–2, 4), (–2, 11)}
{(–4, –6), (–3, –2), (1, –2), (1, 0)}

To check if a relation is a function, given a mapping diagram of the relation, use the following criterion: If each input has only one line connected to it, then the outputs are a function of the inputs. Example: In the following mapping diagram, y is a function of x, but x is not a function of y: Line Test.

Step-by-step explanation:

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.

answer: (-6,3)

step-by-step explanation: