I believe that it would be the first one. They are looking for the distance from the y-axis, so the x value doesnt matter. 6 is 6 units away from the y-axis, and -6 is also 6 units away from the y-axis. Hope I helped!
If the price went down $5 per day for four days straight, then it would have went down $20 total after the four days.
1-(1/5)= 4/5 or 28/35 if you multiply top and bottom by 5
