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valentina_108 [34]
3 years ago
8

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

Mathematics
2 answers:
julia-pushkina [17]3 years ago
6 0

Answer:

The coordinates of R are (6.5,-15.25).

Step-by-step explanation:

We are given that

The midpoint of RT is S.

The coordinates of S are  (0.5,-6.25).

The coordinates of point T  are (-5.5,2.75).

We have to find the coordinates of R.

Mid- point formula :

x=\frac{x_1+x_2}{2}, y=\frac{y_1+y_2}{2}

We have x=0.5,y=-6.25,x_2=-5.5,y_2=2.75

Let the coordinates of R are  (x_1,y_1).

Using this formula ,

0.5=\frac{x_1-5.5}{2}\implies x_1-5.5=1.0

x_1=1.0+5.5=6.5

-6.25=\frac{y_1+2.75}{2}

-12.50=y_1+2.75

y_1=-12.50-2.75=-15.25

Hence, the coordinates of R are (6.5,-15.25).

IrinaK [193]3 years ago
5 0
<span>(6.5, –15.25) Is the answer.</span>
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