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asambeis [7]
3 years ago
8

What are the center and radius of the circle given by the equation ?

Mathematics
1 answer:
valina [46]3 years ago
3 0

General formula of the circle

(x-a)² + (y - b)² = r²,


where (a,b) - coordinates of the center, r - radius of the circle.


(x-3)²+(y+4)²=4

(x-3)²+(y+4)²=2²


So, the center is (3, -4) and radius r = 2.


A. (3, –4); 2


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1) The given quadratic equation is m² - 5m - 14 = 0.

From the above equation, it can be determined that b = -5 and c = -14

The roots are -7 and 2.

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The solution is given by (x-7) (x+2) = 0.

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From the above equation, it can be determined that b = -4 and c = 4

The roots are -2 and -2.

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