Which polynomial represents the sum of 12x^2 + 17x - 4 and 9x^2 - 13x + 3

homozygous. one is homozygous, while two is heterozygous.

college

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.