The y-intercept is a fundamental concept in mathematics, particularly in the context of linear equations and graphs. It represents the point where a line or curve intersects the vertical y-axis on a coordinate plane.
In the equation of a line (y = mx + b), the y-intercept is denoted by ‘b’ and signifies the value of ‘y’ when ‘x’ is equal to zero.
It provides a starting point for graphing a line and helps determine its position and slope.
The y-intercept is essential for understanding and analyzing linear relationships and equations in algebra and geometry.