Vocabulary
The second number in an ordered pair...
y-coordinate
List the 4 rules for multiplying integers . . .
P x P = P
N x N = P
N x P = N
P x N = N
- 5 + - 7 =
-12
- 5 x - 4 =
20
Whole numbers and their opposites or negative and positive numbers . . .
integer
Synonym for a coordinate system. . .
coordinate grid
List the 4 rules for dividing integers . . .
P / P = P
N / N = P
P / N = N
N / P = N
- 4 + 17 =
13
40 x (-2) =
-80
Two integers on a number line that are the same distance from zero . . .
opposite
Four regions on a grid separated by perpendicular lines. . .
quadrant
List the 2 rules for adding integers . . .
1. Same sign; add them up, keep the sign
2. Different signs; subtract the smaller number from the larger number, and use the sign of the larger ABSOLUTE VALUE number.
17 - (-3) =
20
- 70 divided by 10 =
-7
It's ordered pair is (0, 0) . . .
origin
Transformation where a figure is slid horizontally, vertically, or both...
translation
List the 2 rules for subtracting integers . . .
1. Take the subtrahend & add the opposite (or keep, change, change)
2. Follow the addition rules
-22 - (-9) =
-13
25 divided by - 5 =
-5
Transformation where a figure is flipped over the y-axis or x-axis . . .
reflection
Movement of geometric figures to new points in a coordinate system. . .
transformation
Finish this rule about reflection:
When you reflect the image over the x-axis, change the ____________________________________
y-coordinate to its opposite.
-12 - (- 50) =
38
-100 divided by - 50 =
2
Two lines that intersect to form right angles . . .
perpendicular lines