This blog is dedicated to helping students have a good understanding of what to expect on the AP Calculus Free Response Questions. Use the Topics menu on the right to find the solution you're looking for.
Thursday, February 22, 2007
2002 3B BC
Area and Volume problem. This one is a little better than the last one since I used a sharpie. You can actually see what I'm doing. I hope you like it. Make sure that you've worked through the problem to the best of your ability before you watch the video!!
I got all of this down to part c, and then when you are finding the length of the line .75x, where does the 1.455 come from? Could you write out the formula you used really quick?
The x value of the end of the section you need to find the length of is 1.9 something or other. I called it A in the problem. The y coordinate is found by plugging that into .75x. That's how I got 1.455. These are then essentially the a and b values of a right triangle and you do the Pythagorean theorem to find the hypotenuse.
2 comments:
I got all of this down to part c, and then when you are finding the length of the line .75x, where does the 1.455 come from? Could you write out the formula you used really quick?
The x value of the end of the section you need to find the length of is 1.9 something or other. I called it A in the problem. The y coordinate is found by plugging that into .75x. That's how I got 1.455. These are then essentially the a and b values of a right triangle and you do the Pythagorean theorem to find the hypotenuse.
Post a Comment