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The centre and radius of the circle `(x+ 2)^(2) + (y+4)^(2) = 9` are

A

(2, 4) and 3

B

`(-2, -4) and 3`

C

`(-2, -4)` and 9

D

`(2, -4)` and 3

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The correct Answer is:
B
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AAKASH INSTITUTE-CONIC SECTIONS-Assignment (SECTION - A)
  1. The equation of the circle with centre at (1, 3) and radius 3 is

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  2. The centre and radius of the circle (x+ 2)^(2) + (y+4)^(2) = 9 are

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  3. The radius of the circle x^(2) + y^(2) + 4x - 6y + 12 = 0 is

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  4. If the perpendicular distance of the line lx+my =1 from the point (0, ...

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  5. The equation of a circle of radius 4 units, touching the x-axis at (5,...

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  6. The equation of the circle in the third quadrant touching each co-ordi...

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  7. The equation of the circle with radius 3 units, passing through the po...

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  8. The equation of the circle with radius sqrt(5) units whose centre lie...

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  9. The equation of the circle passing through (0, 0) and making intercept...

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  10. If 'P' is any point on the circumference of the circle x^(2) + y^(2) -...

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  11. The equation of the circle having centre (0, 0) and passing through th...

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  12. The equation of the circle which passes through the point (3, 4) and h...

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  13. If the lines 3x + y = 11 and x - y = 1 are the diameters of a circle ...

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  14. The point (2, 4) lies inside the circle x^(2) + y^(2) = 16. The above ...

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  15. The equation of the parabola with focus (3, 0) and directrix y = -3 is

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  16. The equation of the parabola with vertex at (0, 0) and focus at (0, 4)...

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  17. The equation of the directrix of the parabola x^(2) = 8y is

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  18. The co-ordinate of the focus of the parabola y^(2) = 24x is

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  19. If x^(2) = 20y represents a parabola, then the distance of the focus f...

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  20. The length of the latus rectum of the parabola x^(2) = -28y is

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