Raw Transcript

This Video is on Inflection Point. To get to my menu You have to press second alpha on the Titanium to enter letters in the home screen, and then you enter the letters i n d e x press alpha again and enter the eight and the closed parentheses. Press ENTER and you’re into my menu. You choose inflection point by scrolling down to it. It’s All in alphabetical order. And Pressing ENTER. This screen shows what’s available in graphing by hand to complete a graph or what might asked for in a given test or homework. Next, I instruct you to start a graph on your paper. And then ask for the function given. You have to press ALPHA first to enter variables in my programs on the Titanium. So let’s enter x cubed minus three times x squared, And Press ENTER. I show you always what you’ve entered so you can change it if you want. I say it’s ok. We’ll Press 6 for inflection point. You have to compute the second derivative, so write all you see down under your graph. You factor the second derivative and set it equal to zero. Solve for the value of x or exes. And plug that value back into the original function to get the y coordinate. And the answer is minus two You mark your x y inflection point value on your graph, this is where the concavity changes direction. Pretty neat huh? Everystepcalculus.com. Enjoy my programs and pass calculus.

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