This week we started reviewing chapter 2 for our test on Wednesday. We learned word problems too, but I’m not really comfortable enough with that to do a one hundred fifty word blog on it. So instead I’ll review a few of the things that we learned the past few weeks in chapter 2.
Find the equation of a tangent line:
-when doing this you have to take the derivative of an equation, then plug in your values then plug the derivative into point slope form.
Ex. 2x^2 + 4x + 2 @ ( 2, 3 )
First take the derivative of the equation: 4x + 4
Now plug in your x value: 4 ( 2 ) + 4 = 12
Now plug into point slope: y – 3 = 12 ( x – 2)
SIMPLE!
Now a review of the chain rule:
( x^2 + 3x ) ^2
(move exponent to front, recopy inside, multiply by derivative of inside):
2 (x^2 + 3x) * (2x + 3) Now use algebra to simplify.
Goodluck on the test Wednesday everybody!!!!!!!!!
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