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timofeeve [1]
3 years ago
12

VIIIe in the standard (x,y) coordmate pralit nas

Mathematics
1 answer:
Savatey [412]3 years ago
7 0

The coordinates of point B are (-4 , -2) ⇒ answer H

Step-by-step explanation:

In any circle

  • The diameter of the circle passing through its center
  • The center of the circle is the mid-point of all diameters

If (x , y) are the coordinates of the mid-point of a line whose end

points are (x_{1},y_{1}) and (x_{2},y_{2}) , then

x=\frac{x_{1}+x_{2}}{2} and y=\frac{y_{1}+y_{2}}{2}

∵ Point C is the center of a circle

∵ AB is the diameter of the circle

∴ C is the mid point of AB

∵ A = (2 , 6) ⇒ (x_{1},y_{1})

∵ B = (x_{2},y_{2})

∵ C = (-1 , 2) ⇒ (x , y)

- Use the rule of the mid-point above

∵ -1=\frac{2+x_{2}}{2}

- Multiply both sides by 2

∴ -2 = 2 + x_{2}

- Subtract 2 from both sides

∴ x_{2} = -4

∴ The x-coordinate of point B is -4

∵ 2=\frac{6+y_{2}}{2}

- Multiply both sides by 2

∴ 4 = 6 + y_{2}

- Subtract 6 from both sides

∴ y_{2} = -2

∴ The y-coordinate of point B is -2

The coordinates of point B are (-4 , -2)

Learn more:

You can learn more about the circle in brainly.com/question/9510228

#LearnwithBrainly

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