Coordinates
Plot the points (5,4)
5 to the right and 4 up
When we reflect the over the x axis, how does the y coordinate change?
It changes to the opposite
How would you find the distance between two points when you have a coordinate plane?
count the squares
How do you find the area of a rectangle on a coordinate plane when you are only given coordinates
Use absolute value to find the distance of the sides then multiply the length and width
Where is Qll?
identifies Qll
Plot the points (-4, -8)
4 to the left and 8 down
Reflect A (8,5) over the y axis
A' is 8 to the left and 5 up
How would you find the distance between 2 points when you don't have a coordinate plane?
Use absolute value of the unmatching coordinates
Find the perimeter of the rectangle ABCD
A (1,2) B (1, 5) C (-6, 5) D (-6, 2)
20 units
Where is the x axis
axis that goes horizontally
How do we write coordinate pairs?
(x,y)
Reflect B (-7, -4) over the x axis
B' 7 to the left and 4 up
Find the distance between a (9, 4) and (9, -3)
7
Find the area of a rectangle ABCD
A (1,2) B (1, 5) C (-6, 5) D (-6, 2)
21 units2
where is the origin?
(0,0)
Plot the points A(-9, 7) and B(3, -5)
A 9 to the left, ad 7 up B 3 to the right and 5 down
Reflect (4, 0) over the x-axis
same position
Find the distance between (5, 4) and (8, 4)
3
Given me a key word that you would find in a word problem that suggests to find the area
cover, paint, inside
In which quadrant is the point (-7, 8)?
Qll
Plot the point (0, 6)
6 up
Samantha drew a map of the park in the her neighborhood. She graphed the point P (-3.5,-3.5) for the playground. The fountain if located at P’ which is P reflected over the y-axis. She wants to graph the picnic tables P” which is P’ reflected over the x-axis. Plot an label P, P’ and P” on the graph
P' would be located at (3.5, -3.5) and P" would be located at (3.5, 3.5)
Find the distance between A (-2, -6) and it's reflection of the y axis
4
If the rectangle EFGH has points E (-9,0), F (-9, 5), and G (-4, 5) what are the coordinates of H?
(-4, 0)
Label the quadrants
Qll Ql
Qlll QlV