Finallly done the first nine weeks… That exam O.o I felt like I did really good on the multiple choice part but when it came to the free response I failed epicly but now I am going to get focused and do everything we get like I should have been so something like that doesn’t happen again to poor me L.
Well to start off the second nine weeks we learned implicit derivatives which involes x’s and y’s. To do implicit derivatives you
1. Take the derivative like normal of both sides
2. When you take the derivative of a y you not it with y’ or (dy/dx)
3. Solve for (dy/dx)
IF you want to find the slope you plug in the x and y value
An example of a implicit derivative is: y^3+y^2-5y-x^2=-4
1. 3y^2(dy/dx) +2y(dy/dx)-5(dy/dx)-2x=0
2. (dy/dx)(3y^2+2y-5)=2x
3. (dy/dx)=(2x)/(3y^2+2y-5)
Well that’s all we learned so far cause we only had one day so far. But when I was doing the home work this weekend I had a few problems. I had problems with all the most of the ones that involve like cos and sin and I really didn’t understand number 12, and number 8 the most because I have trouble when its like a #xy and I didn’t know how to worky around the pie symboly on number and for 21-28 I didn’t know how tho find the derivative through a specific point so if someone can explain that.
Im getting focused this nine weeks so I don’t bomb again.
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I don't know how to tell you what to do exactly on here but if you show me at school i may be able to help you but if not ask mrs robinson she can help you
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