Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 22)
Which of the following statements are true about the line 2x + y - 6 = 0?
The gradient is -2.
The y-intercept is 6.
The line is increasing.
The x-intercept is 3.
คำอธิบาย
Rearranging, y = -2x + 6 (gradient = -2; y-intercept = 6). The x-intercept occurs when y = 0 so 2x-6=0, x=3