Mathematics for IGCSE & O level - Coordinate Geometry (Section 1 - No. 20)
The equation of a line is y = 3x - 4. At what point does this line intersect the y-axis?
(0, 3)
(0, -4)
(3, 0)
(-4, 0)
설명
The y-intercept is the point where the line crosses the y-axis, which is at x=0. In the equation y = 3x - 4, when x=0, y=-4, so the y-intercept is at (0, -4).