Find the slope of a parallel line and the slope of a perpendicular line

Question

y=x

Answer 1

The equation is .

The slope intercept form of a line equation is , where is slope of the line and is -intercept.

Compare the line equation with slope intercept form.

Here and .

The slope of the line is .

Slopes of the parallel lines are equal.

The slope of a line parallel to the line equation is .

Product of slopes of perpendicular lines always be .

.

The slope of the perpendicular line is .