Jan2023 final exam practice

What is a radius?

• A line segment that goes from the center of a circle to its edge

• A type of music device that plays FM or AM stations

• A line that intersects a system of two or

  more lines

• A line that intersects another segment at a 90 degree angle at its midpoint

What is a perpendicular bisector?

• A line that is parallel to another line

• A line segment that goes from the center of a circle to its edge

• A line that intersects another segment at a 90 degree angle at its midpoint

• A mode of transportation in NYC

What is a hypotenuse?

• The longest side opposite the 90° angle in a right triangle

• A large, mostly herbivorous, semiaquatic mammal native to sub-Saharan Africa

• The amount space between two or more intersecting lines

• An educated guess often made on the basis of limited evidence as a starting point for further investigation

Which describes a sequence of rigid motions that maps ΔABC onto ΔA’B’C’?

• a rotation of 90° counterclockwise about point C followed by a reflection over the x-axis

• a rotation of 90° counterclockwise about point C followed by a translation down 4 units

• a reflection over the y-axis followed by a reflection over the x-axis

• a reflection over the x-axis followed by a rotation of 90° counterclockwise about point C

Which is the only transformation that is NOT a rigid motion.

• 
• 
• 
• 

Which triangle is the preimage?

• Triangle DEF
• Triangle D'E'F'
• Both
• Neither

Find the coordinates of the image

• (14, 0)
• (-10, 0)
• (10, 8)
• (14, 16)

This rule describes what transformation?

• A translation(slide) 4 units to the right and 6 units down.
• A translation 4 units to the left and 6 units up.
• A translation 4 units the left and 6 units down.
• A translation 4 units to the right and 6 units up.

Write the rule for the following translation.

• (x, y) --> (x - 8, y - 5)
• (x, y) --> (x + 8, y - 5)
• (x, y) --> (x + 8, y + 5)
• (x, y) --> (x - 8, y + 5)

Describe the translation.

• 6 units to the right and 0 units up or down
• 3 units to the left and 6 units down
• 3 units to the left and 0 units up or down
• 6 units to the left and 0 units up or down