1.)Well from what i remember of transformations is that there is always a parent function to use and that when a function is transformed it is the same thing except that it just moves around and depending where it needs to go. if it is f(x) + a number, the parent function will shift up or down depending what number is used if it is negative it shifts down and if is positive it shifts up. For example f(x) + 3 the parent function will shift three units upward and that would be its transformation. Another way the graphs shift is by moving sideways and is done so by f(x+ a number) this way the graph shifts along the x-axis. another example F(X-5) the parent function will shift five units to the right and that will be the new graph.
2.) things that helped me remember trig. was rewritng the unit circle over and over until i coluld remember everything on it also having my sister test me by saying them outloud and having me respond back and she would tell me how many i got wrong or right after she finished testing me on it. i also rember that x is cosine and that y is sine. i also remember a bit about the basics of inverses and how that all inverses and the parent function are symetrical along the y=x line.
3.) things that still confuse me are remembering certain equations csc, cot, sec. also arc tan still confuses me other than that that is just about it and also the last thing that confuses me is how to fing certain inverses.
Tuesday, November 24, 2009
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I'm so glad you got that unit circle down pat. =) Did you memorize your flashcards that way too? That might help w/ number 3.
ReplyDeleteDo you still have questions with inverses or can you find it? w/ equations, switch the input and outputs and then solve for y. w/ graphs, reflect it over the y=x line.