👉 An intercept is a point where two lines intersect. It is also known as a "y-intercept" because it marks the point at which the line crosses the y-axis, and it is often used to determine the slope of a line when graphed on the coordinate plane. The slope of a line can be calculated using the formula: m = (change in y) / (change in x), where "change in y" represents the change in the y-coordinate of the intercept point and "