Mathematics
Grade9
Easy

Question

Find point C on the x-axis, so AC + BC is minimum.
A(2, 3), B (-3, -3)

  1. C(-1, 0)
  2. C(1, 0)
  3. C(0.5, 0)
  4. C(-0.5, 0)

hintHint:


Plot the points A'B or AB' and then find the point on the x-axis.

The correct answer is: C(-0.5, 0)


    * In Geometry, a reflection is known as a flip. A reflection is a mirror image of the shape. An image will reflect through a line, known as the line of reflection.
    *It is a type of transformation that produces mirror image of the shape.
    Given That:
    Find point C on the x-axis, so AC + BC is minimum when A(2, 3), B (-3, -3)
    * We know that A(2, 3), B (-3, -3)
    * We have to find the point C on the x-axis, so AC + BC is minimum.
    * First, plot the points in the coordinate system. The shortest distance from point A to point B gives the line that joins these two points.
    * Now, join line A to B; line AB intersects at the x-axis at point C.
    * This point C is on the x-axis, so AC+ BC is minimum.
    Graphical Representation:

    >>>Therefore, the required point is C(-0.5,0).

    Since, the point lies on the x-axis. Then, the intersection of the line A'B and the x-axis gives the required point

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