Answer
Step-by-step explanation
The equation of a straight line is given in general form as
y = mx + c
where
y = the y-coordinate of any point on the line.
m = the slope of the line.
x = the corresponding x-coordinate of the point on the line whose y-coordinate is y.
c = y-intercept of the line. that is, the point where the line crosses the y-axis
The nature of the relationship of two lines (whether they are parallel or perpendicular to each other) can be obtained from the value of their slopes.
If two lines with slopes m₁ and m₂ respectively, are given,
- The condition for the two lines to be parallel is for the slopes of each of the two lines to be equal. That is, for the two lines to be parallel,
m₁ = m₂
- The condition for the two lines to be perpendicular to each other is for the