Answer
$d=6.7$
$M(-2.5,-2)$
Work Step by Step
Use the distance formula:
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
$d=\sqrt{(-1-(-4))^2+(1-(-5))^2}$
$d=\sqrt{(3)^2+(6)^2}$
$d=\sqrt{9+36}$
$d=\sqrt{45}$
$d=6.7$
Use the midpoint formula to find the x-coordinate of the midpoint:
$x_m=\frac{x_1+x_2}{2}=\frac{-4+(-1)}{2}=\frac{-5}{2}=-2.5$
Use the midpoint formula to find the y-coordinate of the midpoint:
$y_m=\frac{y_1+y_2}{2}=\frac{-5+1}{2}=\frac{-4}{2}=-2$