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stepladder [879]
3 years ago
6

The midpoint of AB is (1.2). The coordinates of A are (-3, 6) Find the coordinates of B.

Mathematics
1 answer:
Gala2k [10]3 years ago
3 0

Answer: coordinates of B are (5,-2)

Step-by-step explanation:

let B be (x2,y2)

x1 = -3 y1 = 6

x = 1

y = 2

so

x = (x2 + x1)/2

1 = (x2+(-3))/2

or, 2 = x2 - 3

so, x2 = 5

now

y = (y2+y1)/2

or, 2 = (y2 + 6)/2

or, 4 = y2 + 6

so, y2 = -2

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Lesson 4.10 - Analytic Geometry
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Geometric shapes are mathematical shapes that include squares and triangles

<h3>How to prove the shape is a square</h3>

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The above shows that the side lengths of the square are congruent.

Next, calculate the slope of the sides using:

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So, we have:

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d = \sqrt{(x_1 -x_2)^2 + (y_1 -y_2)^2}

Using the above formula, we have:

XY = \sqrt{(5-4)^2 + (-1-4)^2} = \sqrt{26

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The above shows that the legs of the right isosceles triangle are congruent.

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