Find the equation of the line intersecting the X-axis at a distance of three units to the left of origin with slope $-2$.

 In the given figure, a straight line passes through the points $P\left(-1,4\right)$ and $Q\left(5,-2\right)$. It intersects the coordinate axes at points $A$ and $B$. If $M$ is the midpoint of the segment $AB,$ then find the equation of the line.

 In the given figure, a straight line passes through the points $P\left(-1,4\right)$ and $Q\left(5,-2\right)$. It intersects the coordinate axes at points$A$ and $B$. If $M$ is the midpoint of the segment $AB$, then find the coordinates of $A$ and $B$.

 In the given figure, a straight line passes through the points $P\left(-1,4\right)$ and $Q\left(5,-2\right)$. It intersects the coordinate axes at points $A$and $B$. If $M$ is the mid-point of the segment $AB$, then find the coordinates of $M$ .