Answer:
2x - y - 20 = 0
Step-by-step explanation:
[tex]P=(6,\,-8)\quad\implies\quad x_p=6\,,\quad y_p=-8[/tex]
y = mx + b
m = 2 ⇒ y = 2x + b
The line goes through P so: [tex]y_p=2x_p+b[/tex]
-8 = 2(6) + b
-8 = 12 + b
b = -20
y = 2x - 20
2x - y - 20 = 0
