Hey all! So sorry about the lack of blogging. I guess the holiday spirit just took over. But I'm back on it now.
Today we learned about relations (a set of ordered pairs) and functions (a relation in which each member of the domain maps to exactly on member of the range.) We learned that you can tell whether or not a relation is a function in one of two ways. First, you can map the domain and range. If each member of the domain has exactly one arrow coming from it, it's a function. If any member of the domain has more than one arrow coming from it, the relation is not a function. The second way is to use the vertical line test. If a vertical line slid from left to right on a graph hits more than one point at any time, the relation is not a function. If it doesn't, it is a function.
So that's that. And today is World AIDS day, so take a moment to think about all the people in the world who have suffered with this terrible disease and then think once again about how lucky you are!
See you tomorrow!
Ms V
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2 comments:
Hi Ms. V!
FUNCTIONS, RELATIONS, FUNCTIONS, RELATION, FUNCTIONS, RELATIONS......................!!!
Have a nice day!
PLEASE return my email---BIG question!
Hello there! Sorry I was sick yesterday. (Ate a bad piece of fish). By the way I was working on the worksheet you gave us for homework, and it didn't make very much sense D:. Luckily I managed to finish it. I just hope it isn't random gibberish. Try getting back to me soon! Byyyeee.
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