Question

Please answer question in one minutes please fast fast

Answer 1

R(19, 4)

Explanation:

Given the midpoint
`\overline R\overline S` to be (19.5, 9.5) with one ens point S as (20, 15), to get the coordinate of the other end point, we need to use the formula for calculating the midpoint of two coordinates.

for x coordinate;

X =
`(x_1+x_2)/(2)`

for y coordinate;

Y =
`(y_1+y_2)/(2)`

where (X, Y) is the midpoint

Given
`x_1` = 20, and
`y_1` = 15, we are to get the coordinate (
`x_2`,
`y_2`)

(X, Y) =
`[(x_1+x_2)/(2), (y_1+y_2)/(2)]`

(19.5, 9.5) =
`[(20+x_2)/(2), (15+y_2)/(2)]`

comparing the coordinates;

`(20+x_2)/(2) = 19.5\ and (15+y_2)/(2) = 9.5\\20+x_2 = 39\\x_2 = 39-20\\x_2 = 19\\\\Similarly;\\15+y_2 = 19\\y_2 = 19-15\\y_2 = 4`

The coordinate R will be (19, 4)