A triangle has corners at #(8, 3 )#, ( 2, -2)#, and #(7, -4 )#. If the triangle is reflected across the x-axis, what will its new centroid be?

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Answer 1 · 2016-03-10T10:44:47

New centroid #(17/3, 1)#

The old centroid is at #(17/3, -1)#. If we are going to reflect the triangle across the x-axis, only the y value will change sign. From -1 to 1.

#(17/3, 1)# is the new centroid.

God bless....I hope the explanation is useful.