Question

Find the equation of the line parallel to x-axis and having intercept -2 on y-axis.

Answer 1

$\text{The slope of x-axis is o}\text{any line parallel to x-axis will also have the same slope.}\text{therefore m = 0}\text{Also line has y - intercept, i.e. (0, b)}\Rightarrow (0,-2)\Rightarrow \left(x_1{y}_1\right)\text{The required equation of the line is}y-y_1=m(x-x_1)y-(-2)=0(x-0)y+2=0y=-2$