Understanding the Equation of a Circle
Interactive Video
•
Mathematics
•
8th - 10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Sophia Harris
FREE Resource
Standards-aligned
Read more
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the standard form of the equation of a circle?
x^2 + y^2 = r^2
(x + h)^2 + (y + k)^2 = r^2
(x - h)^2 + (y - k)^2 = r^2
x^2 - y^2 = r^2
Tags
CCSS.HSG.GPE.A.1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the center of a circle is at (2, -3), what are the values of h and k?
h = -2, k = -3
h = -2, k = 3
h = 2, k = 3
h = 2, k = -3
Tags
CCSS.HSG.GPE.B.7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula is used to calculate the distance between two points?
Quadratic formula
Midpoint formula
Slope formula
Distance formula
Tags
CCSS.HSG.GPE.B.7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the distance between the points (2, -3) and (8, 3)?
Square root of 72
12
6
Square root of 36
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you simplify the square root of 72?
12
6√2
6
8√3
Tags
CCSS.8.EE.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of r squared if r is the square root of 72?
36
18
72
144
Tags
CCSS.8.EE.A.2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the simplified form of the radius if r equals the square root of 72?
12
6√2
6
8√3
Tags
CCSS.HSG.GPE.A.1
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