This week we reviewed and did packets...
so here i go on things i now understand.
Soo, optimization..
a. identify primary and secondary
(primary the one your maximizing or minimizing)(secodary the other one)
b. solve secondary for 1 variable and plug into primary
c.take derivative. plug into secondary equation.
I also now understand how to figure out different types of limits. You find vertical asymptotes when you set the bottom of a fraction equal to zero and solve. For horizontal asymptotes, you use the three rules when looking at the degree on the top of the fraction and on the bottom. Anything you can cancel from a function is a removable. Another thing i understand better is how to use the first and second derivative test. When using the first derivative test, you take the derivative of the function and set it equal to zero and solve for x. Then you set up your x values into intervals to see which ones are max and mins etc. When using the second derivative test, you take the derivative of a function two times and set equal to zero and solve for x. You put these x values into intervals as well to find if a graph is concave up or down, point of inflection, etc.
The thing i still do not understand is simplifying. I get stuck when there is nothing left to factor out..can anyone tell me what to do after?
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if there is nothing left to factor out look for like terms and put like terms together
ReplyDeleteFor multiple choice type factoring out stuff, look at the answers, they are usually all around the same. look at those and then see if you can factor anything else out.
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