Quite a number of people have asked to see my Counting test, so I just scanned it and decided to post it here. Page 1 Page 2 Page 3 Page 4 I found this unit extremely easy. The stuff looked like nonsense and garbage to me from the start, but when I actually looked at the stuff, I realized that I was wrong. The folding of the papers did not help me however. Nevertheless, it was Mr. K’s method to help us understand every one of the conic sections. You must basically understand the anatomy of each conic section. That is the key to solving the questions. Other than that, the unit test should be easy. Well, I hope it is. WATCH OUT WHEN DOING/DRAWING THE VERTICES AND FOCII. IT’S OBVIOUS THEY’RE NOT THE SAME, BUT EVEN PEOPLE THAT KNOW THAT CAN MAKE MISTAKES WHEN DRAWING THEM. SOME PEOPLE USE THE FOCII AS THE VERTEX BY ACCIDENT OR ADDRESS THEM INCORRECTLY WHEN ANSWERING QUESTIONS !!!!! Hyperbola The transverse axis extends from the vertices of the hyperbola. This does not have a fixed orientation. It can be either horizontal or vertical. It can be found by using “2a.” Two semi-transverse axes complete a full transverse axis. The conjugate axis is the perpendicular bisector of the transverse axis, meaning it cuts the transverse axis in half at a 90 degree angle. This does not have a fixed orientation. It can be either horizontal or vertical. It can be found by using “2b.”Two semi-conjugate axes complete a full conjugate axis. For the conjugate and transverse axes, watch out for what the question asks for. Some may ask for the “semi axis” while some may ask for just the “axis.”
Ellipse Worksheet on Ellipse The major axis is the longest of the axes. Two semi-major axes complete the major axis. The minor axis is the shortest of the axes. Two semi-minor axes complete the minor axis. Circle Video on Circle Worksheet on Circles The circle is like the ellipse’s brother. They’re pretty much the same except the circle has radii equidistant from the circumference to the center of the circle. Parabola Video on Parabola Worksheet on Parabola The parabola is very easy to understand. There is one focus which is the same distance as the directrix from the vertex of the parabola. Question If the focus is to the left of the vertex, what direction does the parabola open? It opens to the left. Probability |
Wednesday, May 27, 2009
Scribe and Bob Post
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