Determine which relation is a function.

a.
{(–3, 2), (–1, 3), (–1, 2), (0, 4), (1, 1)}

b.
{(–3, 2), (–2, 3), (–1, 2), (0, 4), (1, 1)}

c.
{(–3, 3), (–2, 3), (–1, 1), (0, 4), (0, 1)}

d.
{(–3, 2), (–2, 3), (–1, 1), (0, 4), (0, 1)}

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

the median here is 25. your lowest value is 14 and highest value is 48. to find the third quartile, find the medium number in between 25 and 48 which would be 42 i believe.