How do you find the midpoint of C (2,9) D (-2,-9)?

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Answer 1 · 2018-03-08T13:22:05

See below

The general formula for midpoint M between C and D is

#M(m_1, m_2)=((c_1+d_1)/2, (c_2+d_2)/2)=((2+(-2))/2,(9+(-9))/2)= (0,0)#

Answer 2 · 2018-03-08T13:22:57

#(0,0)#

#"the coordinates of the midpoint (M) are the average of the"#
#"coordinates of the endpoints"#

#M=[1/2(2+(-2)),1/2(9+(-9)]=(0,0)#

Answer 3 · 2018-03-08T13:23:57

#(0, 0)#

Just take their averages:

For x value #(2-2)/2=0#

For y value #(9-9)/2=0#

Your midpoint is (0, 0)

Answer 4 · 2018-03-08T13:26:56

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#(2+ -2)/2# , #(9+ -9)/2#

And your answer is #(0,0)#