Coordinate Plane and Area and Perimeter on the Coordinate Plane

G is plotted at (3, -2) and is reflected across the y-axis. Which ordered pair below shows this reflection?

*Use the coordinate plane to help you.

• (3, 2)

• (-3, -2)

• (2, 3)

• (-2, 3)

What would be the coordinates of point A after being reflected across the y- axis. (Click on the picture to make bigger)

• (-2, 7)

• (2, -7)

• (-7, 2)

• (-7, -2)

If the coordinates (4,-4) are reflecting over both the x and y-axes, what would be the ordered pair for the reflected point?

• (-4,4)

• (-4,-4)

• (4,4)

• (4,-4)

What is the area of the figure? 

• 12 square units

• 24 square units

• 18 square units

• 36 square units

You design a tree house using a coordinate plane. You plot the vertices of the floor at J (2, 1), K (2, 8), L(9, 8), and M (9, 1). The coordinates are measured in feet. What is the area of the tree house?

• 28 feet²

• 49 feet²

• 56 feet²

• 64 feet²

What is the area of the rectangle?

• 12 units²

• 10 units²

• 5 units²

• 6 units²

What is the length of the longest side of the rectangle?

• 4 units

• 5 units

• 6 units

• 8 units

Which of the coordinates given could be the fourth point used to form a rectangle?

• (3, -6)

• (-3, -6)

• (-6, 3)

• (4, -6)

What is the distance between points  (10, 7) and  (2, 7) on a coordinate plane?

• 2

• 9

• 10

• 8

If a square has a perimeter of 20 units. How long is each side length?

• 4 units

• 5 units

• 10 units

• 2 units