Final answer:
In the quadratic equation y = ax² + bx + c, the y-intercept is the point where the graph of the equation crosses the y-axis and its coordinates are (0, c).
Step-by-step explanation:
In the quadratic equation y = ax² + bx + c, the y-intercept is the point where the graph of the equation crosses the y-axis. The y-coordinate of this point is equal to the constant term c in the equation. Therefore, the y-intercept is (0, c).
For example, if we have the quadratic equation y = 2x² + 3x + 1, the y-intercept is (0, 1), since the constant term is 1.