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shusha [124]
3 years ago
14

The line segment, AB has a point C as its midpoint. If A is at (2,2) and C is at (5,4) what are the coordinates of the endpoint

B
A:(-1,0)
B:(3.5,3)
C:(5,4)
D:(8,6)
Mathematics
2 answers:
Alecsey [184]3 years ago
5 0

Answer:

( 8 , 6 )

Step-by-step explanation:

A = ( 2 , 2 ) and C = ( 5 , 4 )

→ Form an equation

\frac{2+x}{2} =5   and   \frac{2+y}{2}=4

→ Now solve them

2 + x = 10 and 2 + y = 6

→ Simply find the values

x = 8 and y = 6

nikdorinn [45]3 years ago
3 0
  • Let the coordinates of B be ( x , y ). Now , Let A ( 2 , 2 ) be ( x₁ , y₁ ) & B ( x , y ) be ( x₂ , y₂ )

SOLUTION :

  • All you need to apply is the formula of Midpoint i.e \sf{ \bold{( \frac{x_{1} + x_{2}}{2}  \: , \frac{y_{1} + y_{2}}{2} )}}

  • Plug the known values :

\large{ \rightarrow{ \tt{ \: (5 \: ,4 \: ) = ( \frac{2 + x}{2}  \: , \frac{2 + y}{2} )}}}

  • Equating corresponding values :

\large{ \tt{5 =  \frac{2 + x}{2} }}

\large{ \rightarrow{ \tt{10 = 2 + x}}}

\large{  \rightarrow{\tt{10 - 2 = x}}}

\boxed{ \large{ \rightarrow \tt{x = 8}}}

  • Value of x = 8

\large{ { \tt{4 =  \frac{2 + y}{2} }}}

\large{ \rightarrow{ \tt{8 = 2 + y}}}

\large{ \rightarrow{ \tt{8 - 2 = y}}}

\boxed{ \large{ \rightarrow{ \tt{y = 6}}}}

  • Value of y = 6

\large{ \boxed{ \tt{OUR \: FINAL \: ANSWER  :  \: D. \: (8 \:, 6 \: ) }}}

:) Hope I helped! Let me know if you have any questions regarding my answer! ~

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