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The coordinates of ADEF are D(-1, 4), E (7,-3), and F (9,5). Write a rule for the translation of ADEF to ADEF. so that the centroid of AD'EF' is
(9,6).
(x,y) -- (x+__y+__) HELP PLEASE

Sagot :

Answer:

(x,y) -->(x+4,y+4)

Explanation:

The triangle DEF is plotted and shown below:

We can also use the calculation method to find the centroid as done below:

[tex]\begin{gathered} (x,y)=(\frac{-1+7+9}{3},\frac{4-3+5}{3}) \\ =(\frac{15}{3},\frac{6}{3}) \\ =(5,2) \end{gathered}[/tex]

The centroid of △DEF = (5,2)

If the centroid of △D'E'F' is (9,6)

Then, the translation rule is derived below:

[tex]\begin{gathered} (5+a,2+b)=(9,6) \\ a=4,b=4 \\ \implies(x,y)\to(x+4,y+4) \end{gathered}[/tex]

View image JessilynN190425
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