If the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and 4, what is the relationship between the coefficients and the roots?

Answer: C. a = 1, b = -7, c = 12
The sum of the roots (3 + 4 = 7) gives -b/a = 7, and the product of the roots (3 * 4 = 12) gives c/a = 12.