Friday, September 4, 2009

jessie's 3rd post:)

okay so third week of calculus has past by and it really wasnt as bad as what i thought it would be. i have to be honest and say that i have no idea what im going to write in this post. i thought that test was going to kill me and especially with that fire drill wasting everyones time.

so, this week was about review, test, and new things. using geogebra mrs robinson taught us about concave graphs and i actually got the concept pretty good it was alot easier than i thought.
i also learned that drawing things really helps solve a problem. aslo, if a line on a graph is going upward its positive and if its going down its negative which is pretty easy to understand. concave up is from that number to infinity concave down is that number to negative infinity. there is also a list to follow. and you need to know about horizontal and vertical lines.

i am still having trouble with some derivatives though i cant give an exact problem for someone to help me with but its usually larger one with alot of steps that mess me up. i try the breaking it down method with like listing if includes quotient rule and product rule etc. i am also still having problems cancelling things i dont need to. everytime i have to cancel something i end up double guessing myself and then i just do the wrong thing. so hopefully theres a way to help with that.

2 comments:

  1. Remember that while taking larger derivative with bigger steps to start from the outside and work in. so whatever is the outer most thing, start with those steps and don't worry about the others until you need to, like when it asks for u and u'.

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  2. What i do to remember it is what sweaty said work from the outside in.

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