Remember: The signs of a pair tell its corner. A mirror changes the signs.
Name the places
1
Which pair names point A? Say across first, then up.
(3, 2)(2, −3)(−3, 2)(−3, −2)
2
What is the y-number of point B?
3
Point P is at (−3, −2). Which corner is it in?
Quadrant 1, top rightQuadrant 2, top leftQuadrant 3, bottom leftQuadrant 4, bottom right
4
The point (2, −3) is in the top right corner.
TrueFalse
5
Join each point to the corner it is in.
1(3, 4)
2(−3, 4)
3(−3, −4)
4(3, −4)
Abottom right
Btop right
Ctop left
Dbottom left
6
Which graph shows the point (−2, 3)?
Graph 1Graph 2Graph 3
7
A mirror lies along the x-axis. Which point is the mirror image of A?
Point PPoint QPoint R
8
Point A is at (−5, 2). Its mirror image across the y-axis is at (, 2). What is the new x-number?
9
Which mirror turns A into B?
The x-axisThe y-axisBoth axes
10
Point A is at (3, −2). Which point is its mirror image across both axes?
(3, 2)(−3, −2)(−3, 2)
11
Number the steps to find where (−3, 2) goes.
Start at the origin, (0, 0)
Go 2 steps up, because y is 2
Mark the point
Go 3 steps left, because x is −3
12
In a pair (x, y), x tells how far across and y tells how far up.
TrueFalse
13
A is at (2, 3) and B is at (2, −3). How many units apart are they?
14
Write a pair that is in the bottom left corner. Tell how you know which corner it is in.
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