Find the center (h, k) and radius r of the circle with the given equation. x2 - 2x + 1 + (y + 3)2 = 49
A. (h, k) = (3, -1); r = 49
B. (h, k) = (1, -3); r = 7
C. (h, k) = (-3, 1); r = 7
D. (h, k) = (-1, 3); r = 49
Answer: B
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A. 20x4 - 36x3 + 30x2 + 6x - 10 B. 4x4 - 36x3 + 30x2 + 6x - 10 C. 4x4 - 32x3 + 30x2 + 6x - 10 D. 20x4 - 32x3 + 30x2 + 6x - 10
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A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
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= 
D. 
= 
, 
= 
Give a written response.Can you name a number whose absolute value is -21? Explain your answer.
What will be an ideal response?