Abiologist is studying a form of bacteria that grow by 20% every hour. the graph
below models the growth of the bacteria, use the graph to approximate how many
bacteria there will be after 3 hours,

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

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.