Q: If the slope of the green line is -3 what is the slope of the red line?

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Parallel lines have the same slope.

To find the slope of a perpendicular line, take the negative reciprocal of the slope of the given line. (Flip the top and bottom of the fraction and change the sign.) The slope of 3 can be written as 3/1. The slope of a line that is perpendicular is -1/3.

The slope of a line that has the points 3, (-4), and has a slope of 2 is 2.

3

Perpendicular line = - 1/gradient= - 1/2/3= - 3/2

Related questions

Parallel lines have the same slope.

if the slope of a line is 2/3, then the slope of a parallel line would be 2/3.

1. Fifth line, click RED (red red RED blue green) 2. Third line, click GREEN (yellow blue GREEN green) 3. Third line, click RED (yellow blue RED green) 4. Third line, click GREEN (yellow GREEN) 5. Second line, click RED (green red RED)

The slope of two lines are perpendicular only if their slopes multiplied together equal -1 (m1*m2 = -1). So if a line has a slope of -3 then a line perpendicular to this one has a slope of -1/-3 or 1/3.

To find the slope of a perpendicular line, take the negative reciprocal of the slope of the given line. (Flip the top and bottom of the fraction and change the sign.) The slope of 3 can be written as 3/1. The slope of a line that is perpendicular is -1/3.

Slope of a line = m slope of perpendicular line = -1/m

The slope of a line that has the points 3, (-4), and has a slope of 2 is 2.

3

Two points don't have a slope. But the line between them does. The line between the points (-5, 3) and (3, 3) has a slope of zero.

Slope of the given line is 3/7 So slope of perpendicular line is -7/3

Slope of given line = -3 Therefore, slope of perpendicular = 1/3

-5/3 it is always the opposite reciprocal for a perpendicular slope