Question

Find the midpoint of CD.M = (x¹+x2, ₁+2)X1+X2AC = (1,9) and D = (7,-7)([ ? ],[_])Enter the number that belongs in the green box.Enter

Answer 1

Given:

C = (1,9) and D = (7,-7)

Required:

Find the midpoint of CD.

Explanation:

$C=(1,9)\text{ D=\lparen7,-7\rparen}$$\begin{gathered} let\text{ x1=1, y1=9} \\ \\ let\text{ x2=7, y2=-7} \end{gathered}$

Midpoint of CD is

$\begin{gathered} M=(\frac{x1+x2}{2},\frac{y1+y2}{2}) \\ \\ M=(\frac{1+7}{2},\frac{9-7}{2}) \\ \\ M=(4,1) \end{gathered}$

Required answer:

(4,1)