25
% of
401.16
m
Give your answer rounded to 2 DP

100.29

Step-by-step explanation:

To get 25% you would just divide 401.16/4

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.