Unformatted text preview: window, and you want to study how its height above the ground changes from second to second. It is natural to let the letter t denote the time (the number of seconds since the object was released) and to let the letter h denote the height. For each t (say, at onesecond intervals) you have a corresponding height h . This information can be tabulated, and then plotted on the ( t, h ) coordinate plane, as shown in ﬁgure 1.1 . We use the word “quadrant” for each of the four regions the plane is divided into: the ﬁrst quadrant is where points have both coordinates positive, or the “northeast” portion of the plot, and the second, third, and fourth quadrants are counted oﬀ counterclockwise, so the second quadrant is the northwest, the third is the southwest, and the fourth is the southeast. 1...
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 Spring '07
 JonathanRogawski
 Math, Calculus, Geometry, Euclidean geometry, purely mathematical situation

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