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Which of the following points in the xy-...

Which of the following points in the xy-plane represents the center of the circle defined by the equation `x ^(2) +y ^(2) -4x-8y-16 =0` ?

A

`(-4, -8)`

B

`(-2, -4)`

C

`(2,4)`

D

`(4,8)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Which of the following are the coordinates of the left - most point on the circle represented by the equations x^(2) + y^(2) - 8x + 6y = 0 ?

    A
    `(9-3)`
    B
    `(1,3)`
    C
    `(-1,-3)`
    D
    `(-9,-3)`

  • In the standard (x, y) coordinate plane, what are the coordinates of the center of the circle whose equation is x^(2)-8x+y^(2)+10y+15=0 ?

    A
    (4, 5)
    B
    `(4, -5)`
    C
    `(-4, 5)`
    D
    `(-5, -4)`

  • Which of the following is the graph of the equation y = 2x − 5 in the xy-plane?

    A
    B
    C
    D

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