Guys, pls help me sort out how to solve this geometry questions but however i do have answers but don't know how to solve it. The answers are -
1D) x = 9.6, y = 5 5/6
3A) x = 95, y = 52, z = 4.8
3B) x = 80, y = 10.5
*P. S - Don't ignore away. Pls try to help me.

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