Answer: an endless cylinder with radius 4 mm and centerline
The equation that you are looking for is y = -2x + 3
Because this is a second degree equation you will have 2 solutions. When you take the square root of a number you have to account for both the positive and negative roots. Since the square root of 289 is 17 then your solutions are +17 and -17.
I think It is 2. it makes the most sense to me