Vocab
The coordinates of the origin are...
(0,0)
Which ordered pair represents point D?
(-2, -3)
When A is reflected across the y-axis, it becomes A'. How do you read " A' " ?
"A prime"
What is the distance between the points:
(3,8) and (15,8)
12 units
The answer to a subtraction problem is called a...
difference
The horizontal number line on the coordinate plane is called...
x-axis
Which ordered pair satisfies the condition: y>2 ?
Point A
A pre-image in Quadrant II is reflected across the y-axis. Which quadrant will the image be in?
R (-4, 18) and S (-4, -32)
50 units
List the integer that represents the situation:
Billy withdrew 100 dollars from his account.
-100
The coordinate plane is broken into 4 sections. These sections are called....
quadrants
What are the coordinates of Point W?
(1.5, 0.75)
or (1 1/2, 3/4)
Point M is located at (4,-5). It is reflected across the y-axis. What are the coordinates of M'?
(-4, -5)
Will the Line Segment AB be horizontal or vertical?
A (5,4)
B (5,-8)
Vertical
Which number is larger?
35% OR 4/11
4/11
What is the definition of a y-coordinate?
the second number in an ordered pair; tells how far up or down to place a point
Name the ordered pair for a point that is 5 units left and 3 units below the origin?
(-5, -3)
Point R is located at (-5.8,-3.9). It is reflected across the x-axis. Which ordered pair represents R'?
(-5.8 , 3.9)
Where will Point C and Point D be located so that rectangle ABCD has a perimeter of 18 units?
(0, 2) and (-6,2)
or
(0,8) and (-6,8)
NO CALCULATOR:
15.88 / 0.4
39.7
Quadrant with negative x and y values
Quadrant III
List the ordered pair for Point D.
(2/5 , -2)
or (0.4, -2)
What happens to the x-coordinate when a point is reflected across the y-axis?
becomes its opposite
(If it is negative, it becomes positive. If it is positive, it becomes negative.)
Where will Point C and D be located so that Rectangle ABCD has an area of 10 square units?
(-1.5, -1) and (-1.5, 1.5)
OR
(6.5, -1) and (6.5, 1.5)
NO CALCULATOR:
5 1/3 - 2 3/5
2 11/15