This set of ordered pairs associates a number with a polygon that has that number of sides:
{(3, isosceles triangle), (3, equilateral triangle),(3, right triangle), (3, scalene triangle),(4, square), (4, rectangle), (4, rhombus),(4, trapezoid), (4, parallelogram),(5, pentagon), (6, hexagon)}
a) Does the set of ordered pairs represent a function? Explain.
b) Suppose the elements in the ordered pairs were reversed. Use the association “has this number of sides.” Would the new relation be a function? Explain.
c) Identify the domain and range of each relation in parts a and b.