Question

find r (2,r) and (-5,,11) ; m= -2

Answer 1

Answer:

r=-3

Step-by-step explanation:

$m=\frac{y_2-y_1}{x_2-x_1}$ -----(A)

Here we are given that

$(x_1,y_1) = (2,r)$

$(x_2,y_2) = (-5,11)$

And the value of m is -2

Replacing them in (A)

$-2=\frac{11-r}{-5-2}$

$-2=\frac{11-r}{-7}$

$-7 \times -2=11-r$

$14=11-r$

$r=11-14$

$r=-3$

Hence the value of r is -3 and the coordinate is(2,-3)