Question

medal and fan if helped!
algebra
Point S is the midpoint of RT.The coordinates of points R and S are (-1,-3) and (5,-5), respectively.What are the coordintates of point T?
A.(7,1)
b.(2,-4)
c.(7,-11)
d(11,-7)

Answer 1

please you have to apply these formula:
\[x _{S}=\frac{ x _{1}+x _{2} }{ 2 },y _{S}=\frac{ y _{1} +y _{2}}{ 2 }\]
where x_S,y_S are the midpoint coordinates, and (x_1,y_1) (x_2,y_2), are your points

Answer 2

whats Xs and Ys?

Answer 3

im not looking for midpoint ,thats a,lready given @Michele_Laino

Answer 4

x_S and yS are the coordinate of your midpoint S, namely:
\[S=(x _{S},y _{S})\]

Answer 5

The mid point is (5,-5) but i need to find T

Answer 6

\[(x _{1},y _{1})=(-1,-3)\]

Answer 7

and:
\[T=(x _{2},y _{2}) \]

Answer 8

What formula do i use in order to Find T?

Answer 9

please you ahve to substitute your numerical data into my formulas, namely:
\[5=\frac{ -1+x }{ 2 },\]
\[-5=\frac{ -3+y }{ 2 }\]
plese solve that equation for x and y

Answer 10

x=6?
y=-2?

Answer 11

no, \[x=2*5+1=11\]

Answer 12

so y= -11?

Answer 13

and :
\[y=(-5)*2+3=-10+3=-7\]

Answer 14

so, your option is D

Answer 15

oh i get it
Thank you so much!

Answer 16

Thank you!