Algebra
posted by Esther .
How do you figure out the minimum and maximum for the graph of a function (without having a list of data, just looking at the graph?) Would you right both of the minimums (there's two points that are equally low), one of them or do something different? Thanks.

If the minimums were exactly the same, I would write the minimum of the functions was xxxx, and occured at x= and x= ...