Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 29)
Which of the following statements is true about the line y = -x + 4?
The gradient is -1.
The y-intercept is 4.
The line slopes upwards.
The x-intercept is 4.
解释
Gradient -1, y-intercept 4, x-intercept 4