1. The problem statement, all variables and given/known data The general equation for a parabola is y=ax²+bx+c, where a, b, c are constants. What are the units of each constant? 2. Relevant equations y=ax²+bx+c 3. The attempt at a solution The answer is a: 1/m; b: dimentionless; c: m How exactly did they get that answer in the book? Can someone explain? I do not understand how b is dimensionless rather than a which is a fraction. Also, where did the 1/m come from?