Lindsey's Reflection

This is our first blog of the year..
Senior year at that.
it is crazy.

the first week of school brob was absent a couple of days and during that time we did problems
dealing with the quadratic formula.

that was mostly a review and it was not hard.

When she got back we went over the summer packet except for limits.

We spent the next week and a half going over limits.

we learned that for most of the time you can plug in for whatever problem you had.

an example would be

lim 2x+4
x-->2

for this problem it is not division or anything to where you would get in the bottom of the problem.

there fore you can easily plug in for this equation and get an acceptable answer.

lim 2x+4
x-->2


you would plug the 2 in where the x is to get the answer.

2(2)+4

4+4=8

the limit for this problem would be 8..

this for me is the easiest type of limit problem to solve but
unfortunately each time will not be as easy as the next.

in some problem you have to plug the problem into a table and find your answer that way.


this is the graph.


x -.1 -.01 -.001 .001 .01 .1

this is what you plug the problem into.

you have to add the number given to all of the numbers.

after doing so you plug the whole equation in to your graphing calculator and the table that you have set up will give you the answers for each different number that you have figured in the table.

most of the time both sides will be approaching a specific number and that will end up being the limit of the problem. you have to compare both sides of the problem and this will only work if both sides that you have compared are the same or they match each other.

in the case that the right and the left side are not the same or do not match..
then the limit does not exist and this will be the answer of the problem!

see everyone tommorrow!