What is the domain of the function indicated by the points on the plane?
a.) {-6, -2, 5}
b.) {-4, -3, 3}
c.) {-6, 3, 5}
d.) {-4, -3, -2}

A.) {-6, -2, 5}

A function from a set to a set is a relation that assigns to each element in the set exactly one element in the set . The set is the domain (also called the set of inputs) of the function. From the figure, we can see that this set is the x-coordinate of each red point. So this set is {-6, -2, 5}