M(8, 7) is the midpoint of RS. The coordinates of S are (9, 5). What are the coordinates of R? (16, 14) (10, 3) (8.5, 6) (7, 9)

Last option    is the correct choice.

Step-by-step explanation:

The required co-ordinates are given as:

Best Regards!

the answer is d

step-by-step explanation:

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: