Naomi asked six of her friends to tell her anonymously whether their favorite enchilada sauce was red or green. She
recorded the results in a table. What is the domain and range
of the relation defined by the table? Is the relation a function?
Explain your answer.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64