Triangle abc is shown below: triangle abc is shown. a is at 2, 1. b is at negative 1, 4. c is at 3, 7. if triangle abc is reflected over the x-axis, which of the following shows the coordinates for point b'?

 B'( -1 , -4).

Step-by-step explanation:

Given : Triangle ABC is shown. A is at 2, 1. B is at negative 1, 4. C is at 3, 7. If triangle ABC is reflected over the x-axis,

To find :  which of the following shows the coordinates for point B'.

Solution : We have given A (2,1 )

B ( -1,4)

C(3,7)

If it is reflected over x axis then,

By the reflection over x axis rule (x , y) →→→→( x , -y).

Then , B(-1 , 4) →→→→ B'( -1 , -4).

Therefore,  B'( -1 , -4).

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