Question

Is the domain {1.8,3.4,9,9.8}
{3.2,3.9,5.8,8.4,9.1}
{2.4,4.8,6.3,8.8,10.1}
{3,4.6,6.7,8.9,10.8}

Answer 1

Asked and answered elsewhere.
https://brainly.com/question/8811503