SUMMATIVE TEST 3 (EQUATION OF CIRCLE)

Which of the following represents the distance d between the two points (x₁,y₁) and (x₂,y₂)?

• 
• 
• 
• 

 What is the distance between two points with coordinates (4, 3) and (1,7)?

• 25

• 16

• 5

• 2

What is the perimeter of an equilateral triangle if two of its vertices have coordinates (0,2) and (0,5)?

• 3

• 6

• 9

• 12

Which of the following should be the value of x so that the distance between the points (x, −2) and (12, −2) is 7?

• 2

• 3

• 4

• 5

In the Cartesian plane, what is the distance of the point (2, -3) from the origin?

• √5

• √13  

• 5

• 13

Which of the following represents the midpoint M of the segment whose endpoints are (x₁,y₁) and (x₂,y₂)?

• 
• 
• 
• 

What are the coordinates of the midpoint of a segment whose endpoints are (-1, -3) and (11, 7)?

• (2, 5)

• (6, 5)

• (-5, -2)

• (5, 2)

Point L is the midpoint of KM . Which of the following is true about the distances among K, L, and M?

• KL=KM

• KL=LM

• LM=KM

• 2|KM|=KL+LM

Which of the following is the origin?

• (0,3)

• (0,0)

• (3,0)

• None of the above

Which of the following equation has a radius of 5?

• 𝑥 + 𝑦 = 7

• 𝑥² + 4x + 2 = 0

• 𝑥 + 𝑦² = 8

• 𝑥² + 𝑦² = 25