unit 9 Flashcard
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the center and radius of the circle given by the equation (x-3)^2 + (y+4)^2 = 25?
Back
Center: (3, -4), Radius: 5
Tags
CCSS.HSG.GPE.A.1
2.
FLASHCARD QUESTION
Front
How do you represent the point (5, π) on a graph?
Back
The point (5, π) is represented by point F.
3.
FLASHCARD QUESTION
Front
What does the equation r = a represent in polar coordinates?
Back
The equation r = a represents a circle with radius a.
Tags
CCSS.HSN.CN.B.4
4.
FLASHCARD QUESTION
Front
Convert the equation x^2 + y^2 + 10x - 4y + 20 = 0 to standard form.
Back
Standard form: (x+5)^2 + (y-2)^2 = 9.
Tags
CCSS.HSG.GPE.A.1
5.
FLASHCARD QUESTION
Front
How do you calculate the area of a sector of a circle?
Back
Area of a sector = (θ/360) * π * r^2, where θ is the central angle in degrees and r is the radius.
Tags
CCSS.HSG.C.B.5
6.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
Area = π * r^2, where r is the radius.
Tags
CCSS.7.G.B.4
7.
FLASHCARD QUESTION
Front
What is the standard form of a circle's equation?
Back
Standard form: (x-h)^2 + (y-k)^2 = r^2, where (h, k) is the center and r is the radius.
Tags
CCSS.HSG.GPE.A.1
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