Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 44)
Which of the following are properties of a line with the equation y = -3x + 5?
The line has a negative gradient.
The y-intercept is 5.
The line is increasing.
The gradient is 3.
解释
The line has a negative gradient because the value of m is negative, y-intercept is 5. The line is decreasing