A machine Cost $ 3,200.00 depreciation at 25% for the first year, 21% at the second year, 17% of the original value of the third year and so on and so on for the 6 years. what is the value at the end of the 6th years?​

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0 

3you can not round up to four, as there was not a full payment for the fourth night, so uou would round down to 3

It would be b because if you look to the diagram there says 92 and then x and then go trough 115