Question

If f(x) and g(x) are a quadratic functions but (f + g)(x) produces the graph below, which statement must be true?

a. The leading coefficients of f(x) and g(x) are opposites.
b. The leading coefficients of f(x) and g(x) are opposite reciprocals.
c. The leading coefficients of f(x) and g(x) are the same.
d. The leading coefficients of f(x) and g(x) are reciprocals.