Delta in Math - Mathnasium Question Title * 1. Where did the delta symbol originate? Ancient Greece Phoenicia Ancient Egypt Ancient China Question Title * 2. What does the discriminant (Δ) indicate about the solutions of a quadratic equation? Whether the solutions are positive or negative The nature of the solutions The sum of the solutions The product of the solutions Question Title * 3. What does the lowercase delta symbol (δ) represent in calculus when used to denote partial derivatives? The rate of change The total change The derivative The variation with one variable held constant Question Title * 4. Which symbol, often mistaken for delta, is used to perform vector operations? Σ (Sigma) ∇ (Nabla) ∂ (Partial Derivative) Ψ (Psi) Done