Q1:Fill in the blanks.
(a) The x-coordinate of (-1,9) is ____
(b) The y-coordinate of (8,7) is ____
(c) If P is a point on the x-axis,then the y-coordinate of P is___________
(d) The coordinate of the origin =____________________
(e) The distance between the points (12,5) and (18,5) is________
(f) The distance between the points(x,y) and (-x,y) is _______
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2007-09-01 12:46 am
回答 (2)
2007-09-01 12:54 am
✔ 最佳答案
Q1(a) The x-coordinate of (-1,9) is -1
(b) The y-coordinate of (8,7) is 7
(c) If P is a point on the x-axis,then the y-coordinate of P is 0
(d) The coordinate of the origin = (0,0)
(e) The distance between the points (12,5) and (18,5) is 6
(f) The distance between the points(x,y) and (-x,y) is 2x
2007-09-01 12:53 am
a)-1
b)7
c)0
d)(0,0)
e)6
f)2
b)7
c)0
d)(0,0)
e)6
f)2
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