Math

QuestionFind the coordinates of point BB if the midpoint M(0,2)M(0,-2) and point A(8,8)A(8,-8) are given.

Studdy Solution

STEP 1

Assumptions1. The midpoint of a line segment is the point that divides the line segment into two equal segments. . The coordinates of the midpoint M are given as (0,)(0, -).
3. The coordinates of point A are given as (8,8)(8, -8).
4. We are asked to find the coordinates of point B.

STEP 2

The formula to find the midpoint M of a line segment with endpoints A and B is given byM=(xA+xB2,yA+yB2)M = \left(\frac{x_A + x_B}{2}, \frac{y_A + y_B}{2}\right)

STEP 3

We can rearrange the midpoint formula to solve for the x-coordinate of BxB=2xMxAx_B =2x_M - x_A

STEP 4

Substitute the given values into the equation to find xBx_BxB=2(0)8x_B =2(0) -8

STEP 5

Calculate the x-coordinate of BxB=2(0)8=8x_B =2(0) -8 = -8

STEP 6

Similarly, we can rearrange the midpoint formula to solve for the y-coordinate of ByB=2yMyAy_B =2y_M - y_A

STEP 7

Substitute the given values into the equation to find yBy_ByB=2(2)()y_B =2(-2) - (-)

STEP 8

Calculate the y-coordinate of ByB=2(2)(8)=4y_B =2(-2) - (-8) =4So, the coordinates of point B are (8,4)(-8,4).

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