Question

Write the equation for the domain = (-infinity,0] U [3,infinity) , range = [0,infinity)

Answer 1

One possible equation that fits the given domain and range is:

y = (x - 3)^2

This is a quadratic function that opens upwards and has its vertex at the point (3,0). It is defined for all real numbers except x = 0, and takes on only non-negative values, which means its range is [0,infinity).