Question

What would be the answer please help

Answer 1

By the Intercept form of an equation,
p = 1 (Intersection Point of line r and the x-axis), q = -2 (Intersection Point of line r and the y-axis)
$\frac{x}{p} \: + \: \frac{y}{q} \: = \: 1$
$qx \: + \: py \: = \: pq$
$( - 2)x \: + \: (1)y \: = \: ( - 2)(1)$
$- 2x \: + \: y \: = \: - 2$
$y \: = \: 2x \: - \: 2$
$y \: = \: (2)x \: + \: ( - 2)$
Where,
m = 2, b = -2.