3 + (-8) - 17
3 - 8 - 17
3 - 25
-22 <==
The answer is (-1,-3) because the line passes through that point.
This is just cylinder surface area, right? Equation for that would be 2πrh+2πr^2. If we input the data given from the image, it’d be (2 x π x 3.5 x 4)+(2 x π x 3.5 x 3.5). (4 is the height, and I found the radius by dividing the diameter, 7, in half, which is 3.5.) if u plug that into a calculator, u get 164.93.
2r(d - 2)
factor out 2 r from the expression