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Pearson Geometry Common Core, 2011 View details

Chapter Review

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Exercise 33 Page 74

Use the Midpoint Formula.

(0,0)

Practice makes perfect

To find the midpoint, we can use the Midpoint Formula. M(x_1+x_2/2,y_1+y_2/2) The coordinates of the given endpoints are (-3,2) and (3,-2). Let's use these to find the coordinates of the midpoint.

M(x_1+x_2/2,y_1+y_2/2)

SubstitutePoints

Substitute ( -3,2) & ( 3,-2)

M(-3+ 3/2,2+( -2)/2)

AddNeg

a+(- b)=a-b

M(-3+3/2,2-2/2)

AddTerms

Add terms

M(0/2,0/2)

CalcQuot

Calculate quotient