hi, i've got a few questions from my book where i'm sure the answers in the back are wrong. the quadratic is factorised into the parabolas cross the x axis at 2 and 1 it then asks me what shape the graph would be. i would think that it would be an inverted U shape (ie like an "n" shape) but the book says its U shaped. similarly with i would expect the opposite of a U shape but the book says it actually is U shaped. am i wrong?