What is y intersect?

The y-intercept is the point where a line or curve crosses the y-axis on a graph. It occurs when the value of the independent variable (usually x) is zero. In the context of a linear equation in the form (y = mx + b), the y-intercept is represented by the constant (b). This point is significant as it helps to determine the starting value of the dependent variable when the independent variable has no effect.