5:Pretest 5 Spatial Thinking A point P has coordinates (-5, 4). What are its new coordinates after reflecting point P over the x-axis?

Question

5:Pretest 5 Spatial Thinking
A point P has coordinates (-5, 4). What are its new coordinates after reflecting point P over the x-axis?
(-5, 4)
(-5,-4)
(5-4)
(5, 4)

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Thiên Di 1 week 2021-09-05T08:44:34+00:00 1 Answers 0 views 0

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    0
    2021-09-05T08:45:50+00:00

    Given:

    The coordinates of point P are (-5,4).

    Point P is reflected over the x-axis.

    To find:

    The new coordinates after the reflection.

    Solution:

    If a point is reflected across the x-axis, then the rule of reflection is:

    (x,y)\to (x,-y)

    Using this rule, we get

    P(-5,4)\to P'(-5,-4)

    The new coordinates of point P after the reflection over the x-axis are (-5,-4).

    Therefore, the correct option is B.

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