A. Point A B. Point B C. Point C D. Point D 相关知识点: 试题来源: 解析 B。本题考查坐标的表示。横坐标为-1,纵坐标为 0 的点在 x 轴的负半轴上,所以是点 B。选项 A 坐标不符合;选项 C 坐标不符合;选项 D 坐标不符合。反馈 收藏 ...
25 Point A has the coordinates (4, 2) with respect to the origin O.(a)Calculate the angle, in degrees to 1 decimal place, that O A makes with the positive x-axis. 相关知识点: 试题来源: 解析 tanα=2/4α=26.6°(awrt) 反馈 收藏 ...
结果1 题目 1 The point A has coordinates (-3, 7) and the point B has coordinates (5, -8)Calculate(a) the length of AB,(b)the gradient of AB. 相关知识点: 试题来源: 解析 -(15)/8,-(15)/8,(0.1) (awrt -1 8 8) 反馈 收藏 ...
A point in the coordinate plane has the coordinates (-3,y). If the point is in the second quadrant, what can be the value of y? A. -2 B. C. 1 D. 2 相关知识点: 试题来源: 解析 C。第二象限的点横坐标为负,纵坐标为正。A 选项纵坐标为负,不符合;B 选项纵坐标为 0,不符合;C ...
题目【题目】Point A has coordinates (3,-4) and point B hascoordinates (-5,-12). If the midpoint of line segment AB is M(,s), then what is the value ofr+s? (A.-18B.-9C.8D.9 相关知识点: 试题来源: 解析 【解析】B 反馈 收藏 ...
The coordinates of a point are (x,3). If the point is on the x-axis, what is the value of x? A. B. 1 C. 2 D. 3 相关知识点: 试题来源: 解析 A。在 x 轴上的点纵坐标为 0,已知纵坐标为 3,不符合在 x 轴上的条件,所以只有当 x=0 时,点在 y 轴上,同时也在 x 轴上。
The point A has coordinates (0,2). The point B has coordinates (-4,-1). Find the coordinates of the midpoint of AB. Work out the gradient of the line AB. Find an equation of the line AB.
point A(x,y)satisfy x=0.Then point A is ()(A)the origin(B)on the x-axis(C)on the y-axis(D)on the x-axis or y-axis2 The coordinates of point A (x,y)satisfy x=0.Then point A is ( )(A)the origin (B)on the x-axis (C)on the y-axis (D)on the x-axis or y-...
题目The point (1,1) is reflected over the x-axis. What are the new coordinates? A. (1,-1) B. (-1,1) C. (-1,-1) D. (1,1) 相关知识点: 试题来源: 解析 A。关于 x 轴对称的点横坐标不变,纵坐标变为相反数。反馈 收藏 ...
The endpoint we know about is (0,1). Let's do the x-coordinate first. The average of the x-coordinates of the two endpoints equals the x-coordinate of the midpoint. So ((0+?))2=4. What is the missing x-coordinate? 8. Now let's do the y-coordinate. ((1+?))2=3. What ...