Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

Using the equation y=ax^2+bx+c to represent a parabola on a graph, which statement is true?

(1) If b is negative, the parabola opens downward.
(2) If a is negative, the parabola opens upwards.
(3) If a is positive, the parabola opens upwards.
(4) If c is negative, the parabola opens downwards.