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Marat540 [252]
3 years ago
13

Identify the transformed coordinates of the line segment A (4, 7) and B (9, 7)

Mathematics
1 answer:
arsen [322]3 years ago
7 0

Answer: A (4, -7) B (9, -7)

Step-by-step explanation:

When it’s reflected over the x-axis, the y coordinates become negative but the x coordinates don’t change

x coordinates: 4, 9

y coordinates: 7, 7

Reflected over x-axis: (4, -7), (9, -7)

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2 years ago
Use the information provided to write the equation of the circle Center: (10,-9) Point on Circle: (12,-13)
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Answer:

(x - 10)² + (y + 9)² = 20

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

The radius is the distance from the centre to a point on the circle

To calculate r use the distance formula

r = √(x₂ - x₁ )² + (y₂ - y₁ )²

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