Gina and Greg have 12 weeks to train for a marathon. Gina plans to increase. The number of miles of her usual run in Week 1 and continue to increase. The number of miles by that same amount each week as shown in the table

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