Plzz
which of the following best describes the ordered pairs listed below?
(-2, 0), (0, -4), (6, -16), (8, -20)
both a relation and a function
neither a relation nor a function
relation only
function only

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?