Si a es divisor de b. es posible que b sea divisor de a

6 cm

step-by-step explanation:

a

step-by-step explanation:

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.