1- 3 +z+12=21 2- 6 x n+12=36

3- If y x 7=28 and y +z +10=18, what is the value of z ?

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 

444 + 222 = 666 is the answer lil uzi