Question

Which relations are functions?

Choose all answers that are correct.

A.
A curve that increases from left to right is plotted on a coordinate grid. The curve goes through point negative 2, negative 3, point negative 1, negative 1, point 0, 0, point 1, 1, and point 2, 3.

B.
x −2 0 3 5
y 1 3 2 3


C.
A set of points are plotted on a coordinate grid. The points include point 5, 4, point 4, 1, point 3, 5, point 3, negative 2, point 2, 2, point 1, 0, and point negative 1, 3.

D.
{(−3, 5), (−1, 3), (2, 2), (2, 6)}

Answer 1

B) Is correct and
as-well is A.
B had no repeated values and A has none as-well.
And for A the curve increases without a repeated value (as drawn in the picture)
For D 2 was repeated.
and for C, 3 was repeated.