Coordinate Geometry and Logic

What are the coordinates of point R?

• (3a,2b)

• (2a, 3b)

• (3a,b)

• (2a,-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)

What formula do you use to decide if there is a right angle based on coordinates? 

• distance

• midpoint

• slope

• partitioning a segment

Give the most precise classification for the quadrilateral.

• parallelogram

• rhombus

• square

• rectangle

• kite

Give the most precise classification for the quadrilateral.

• parallelogram

• rhombus

• kite

• rectangle

Give the most precise classification for the quadrilateral.

• parallelogram

• isosceles trapezoid

• rectangle

• trapezoid

• kite

What are the coordinates of point Q?

• (a,b)

• (a/2, b/2)

• (a,2b)

• (-a,-b)

What is the length of QR?

• 2b

• 2a

• a+b

• 4a

What is the slope of QP?

• -1

• -2a/b

• a/b

• -b/a

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

• (3c,b)

• (a+c,b)

• (2a-c,b)

• (a+2c,b)