i’ll mark brainiest!! how do u get the rate of change for #2? and what’s the greatest rate of change out of all of them?

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.

is this a dating site too?