The midpoint of RT is S(0.5, –6.25). One endpoint is T(–5.5, 2.75). What are the coordinates of R?

(–4.5, –15.25)
(6.5, –9.75)
(–4.5, –9.75)
(6.5, –15.25)

Question

The midpoint of RT is S(0.5, –6.25). One endpoint is T(–5.5, 2.75). What are the coordinates of R? 

(–4.5, –15.25)
(6.5, –9.75)
(–4.5, –9.75)
(6.5, –15.25)

GPT-5 mini · Answer

Use midpoint formula: R = (2*Sx - Tx, 2*Sy - Ty) = (2*0.5 - (-5.5), 2*(-6.25) - 2.75) = (6.5, -15.25).

The midpoint of RT is S(0.5, –6.25). One endpoint is T(–5.5, 2.75). What are the coordinates of R?

(–4.5, –15.25)
(6.5, –9.75)
(–4.5, –9.75)
(6.5, –15.25)

All Answers 1

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The midpoint of RT is S(0.5, –6.25). One endpoint is T(–5.5, 2.75). What are the coordinates of R? (–4.5, –15.25) (6.5, –9.75) (–4.5, –9.75) (6.5, –15.25)

All Answers 1