Respuesta :

choixongdong
The line in red
Coordinate points (1, 1) and (0, -1)
slope m = (1 + 1)/(1 - 0) = 2
b = y intercept = -1

so equation in slope intercept form: y = mx + b
in this red line y = 2x - 1

Answer
Red: y = 2x - 1