1) terms: origin, x-axis, y-axis, x-coordinate, y-coordinate 2) every point in the plane can be denoted by a unique ordered pair, (x,y). 3) the axes divide the plane into four quadrants; the quadrant of a point determines the +/- sign of its x- and y-coordinates The x-y ...
The coordinate plane is a plane determined by two perpendicular lines, the x-axis and the y-axis. The x-axis is the horizontal axis, and the y-axis is the vertical axis. Every point in the plane can be stated by a pair of coordinates that express the location of the point in terms...
1. Mathematics Any of a set of two or more numbers used to determine the position of a point, line, curve, or plane in a space of a given dimension with respect to a system of lines or other fixed references. 2. coordinates Informal Directions: Give me some coordinates so I can find...
首先,x=y^2-4就是定点在(-4,0)的抛物线.(我指的是抛物线,不是抛物线函数.你图像自己应该会)这个图像画不画也没多大关系.然而,重要的是要知道这个图像和y轴和x=5这条直线的交点分别为(0,P),(0,-p),(5,t),(5,-t).换句话说这四个点在抛物线上.为什么?因为这个图像是关于x轴对称的,而和直线L有...
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the point is below the x-axis, its y-coordinate is negative.The Quadrants The coordinate plane is divided into four quadrants. Each quadrant is a specific region in the coordinate plane. The region in which x > 0 and y > 0 is Quadrant I. The region in which x < 0 and y > 0 is...
】ded into four quadrants. Each quadrant is a specific region in the coordinate plane. The region in which x > 0 and y > 0 is Quadrant I. The region in which x < 0 and y > 0 is Quadrant II. The region in which x < 0 and y < 0 is Quadrant III. The region in ...
As you can see from the figure, each of the points on the coordinate plane is expressed by a pair of coordinates: (x, y). The first coordinate in a coordinate pair is called the x-coordinate. The x-coordinate is the point’s location along the x-axis and can be ...
B(x2,y2). If M is the midpoint of AB, the coordinate of M is (x1+x22,y1+y22). (1) Suppose A(1,2), B(5,0), M is the midpoint of AB, the coordinate of M is . (2) Let N(3,2) be the midpoint of CD, given the coordinate of C(7,3), the coordinate of D...
first quadrant (of the coordinate plane, where both x and y are positive)— 第一象限 也可见: plane名— 平面名 · 飞机名 · 水平面名 · 航班名 · 刨名 · 层面名 · (精神)层次名 · 刨子名 · 班机名 plane动— 刨光动 · 疾驶动 ...