Which equation represents a circle that contains the point (–5, –3) and has a center at (–2, 1)?
2 answers:
Answer:
C
Step-by-step explanation:
for us lazy folks.
Answer:
(x + 2)² + (y - 1)² = 25
Step-by-step explanation:
radius: r² = (1 - (-3))² + (-2 - (-5))² = 16 + 9 = 25
r = 5
Circle: (x - h)² + (y - k)² = r²
center: (-2 , 1) h = -2 k = 1
(x + 2)² + (y - 1)² = 25
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Step-by-step explanation:
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Answer:
c
Step-by-step explanation:
edge2020
A = 2
b = 0
2a + 2b = 4 → 4a + 4b = 8
(4a + 4b = 8) - (4a - 3b = 8) → 7b = 0
b = 0
so a = 2
