Kevin's savings account balance changed from $1140 in january to $1450 in april. find the average rate of change per month. round your answer to the nearest dollar.

all it means is function 3

many reason,

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.