Which polynomial represents the product of 2m−62m-6 and 4m3−3m−64m3-3m-6?

8m3−30m2+30m−368m3-30m2+30m-36

21m3+32m2+19m+621m3+32m2+19m+6

64m3−8m2−94m−4064m3-8m2-94m-40

36m3+16+44m

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.