Question

Equation of points -3,-1 and -1,-3

Answer 1

`\begin{gathered} \text{The point are,} \\ x_1=-3, \\ y_1=-1, \\ x_2=-1, \\ y_2=-3 \end{gathered}`

The formula for equation od line is,

`\begin{gathered} (y-y_1)/(y_2-y_1)=(x-x_1)/(x_2-x_1) \\ (y-(-1))/(-3-(-1))=(x-(-3))/(-1-(-3)) \\ (y+1)/(-2)=(x+3)/(2) \\ 2y+2=-2x-6 \\ 2y=-2x-8 \\ y=-x-4 \end{gathered}`