Vocabulary
The horizontal number line
x-axis
(1,3) is located in this quadrant
QI
What is the distance between (8, -3) and (1, -3)?
7 units
The reflection of (-1,3) across the x-axis
(-1,-3)
A coordinate plane is formed when __________________ intersect
What is 2 number lines
A section of the coordinate plane. (There are 4 of them)
A quadrant
Which point is in IV? (-3,3) (-3,-3) (3,-3) (-3,-3)
(3,-3)
the distance between (-2,4) and (-5,4)
3 units
The reflection of (-5,-6) across the y-axis
(5,-6)
the coordinates of the origin
What is (0,0)
The place where you always start at the graph a point. It's location is (0,0)
The origin
which point is on the x axis? (4,0) (0,4)
(4,0)
The distance between (8,9) and (8, -1)
10 units
What is the name for the point after it is reflected?
Prime
We label quadrants using Roman Numerals by going ______________________ on the coordinate plane
Counter Clockwise
In (-3,4) the "-3" is which coordinate?
x-coordinate
Which quadrant has points (-x, -y)?
QIII
What is the distance between (-6,2) and (-6, 11)?
9 units
Reflect these two points in the y-axis.
D (3,4)
E (-4,-1)
D' (-3,4)
E' (4,-1)
What are the coordinates of the point (-8,-4) BEFORE it was reflected across the y axis?
What is (8,-4)
What is another name for a coordinate?
Ordered Pair
What do the coordinates of any point on the y axis look like?
(0,y)
What is the distance between (0,-5) and (0, 9)
14 units
Reflect these three points in the x-axis.
A (1,3)
B (-2,6)
C (-4,-5)
A' (1,-3)
B' (-2,-6)
C' (-4,5)
Name a point whose distance is 5 away from (-2, -1)
(-2, 4) or (-2, -6) or (-7, -1) or (3, -1)