Question

What is the range of the following relation?

{(-1, 1), (-2, 2), (-3, 3), (-4, 4), (-5, 5)}

{-1, -2, -3, -4, -5}
{1, 2, 3, 4, 5}
{-1, -2, -3, -4, -5, 1, 2, 3, 4, 5}

Answer 1

The range is the set of y-values covered.
What is the lowest y-value?
What is the highest y-value?
the range is the lowest value to the highest value.