-2 1/4, -1 1/4, 3/4, |1 1/4|, |-1 3/4|, |-2 1/4|
1.8 = 1.80
If there is a 0 after any number in a decimal it has no value,
for example, 1.2323000 = 1.2323
well, the quadratic has a leading term with a positive coefficient, meaning is a parabola opening upwards, like a "bowl", comes from above down down down, reaches a U-turn, namely the vertex, and goes back up up up.
so the minimum value is at the vertex of course, and the minumum is well, just the y-coordinate of the vertex, 8.