Name a pair of triangles in the figure and state whether they are congruent by sss, sas, asa, aas, or hl.

true? is that what you're asking or do you mean something else?

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.