allureohicks allureohicks 09-11-2021 Mathematics contestada 2. Which is the BEST definition of a line's x-intercept? The x-intercept of a line is where the line crosses the y-axis. The x-intercept of a line is where the line crosses the vertical axis. The x-intercept of a line is where the line crosses the horizontal axis. The x-intercept of a line is where the line crosses the origin.