Coordinate Geometry

What are the coordinates of point R?

• (3a,2b)

• (2a, 3b)

• (3a,b)

• (2a,-b)

What is the length of QR?

• 2b

• 2a

• a+b

• 4a

Given ABCD is a parallelogram, what are the coordinates of point C?

• (3c,b)

• (a+c,b)

• (2a-c,b)

• (a+2c,b)

ABCD is a parallelogram, so the diagonals bisect each other. What is the midpoint of the diagonals?

• (a+c,b)

• (c/2,b/2)

• ((a+c)/2,b/2)

• (a/2,b/2)

Which point has the coordinates (0,6)

• A

• B

• C

• D

Which describes how to locate point A from the origin?

• Count 3 units to the right and 5 units up.

• Count 5 units to the right and 3 units up.

• Count 3 units up and 5 units to the right.

• Count 5 units up and 3 units to the right.

How would you plot point (7,2) correctly on the coordinate grid?

• Begin at the origin. Go up 7 units and to the right 2 units.

• Begin at the origin. Go up 2 units and to the right 7 units.

• Begin at the origin. Go to the right 2 units and up 7 units.

• Begin at the origin. Go to the right 7 units and up 2 units.

Fill in the blanks:
Point (0 , -7) lies______

• on the x-axis

• in the second quadrant

• on the y-axis

• in the fourth quadrant

x-coordinate of a point is also known as _____

• Ordinate

• Origin

• Abscissa

• Ordered pair

The point at which the two coordinate axes meet is called ______

• abscissa

• ordinate

• origin

• quadrant