Sunday, March 31, 2013

MYP Mathematics, gradient of a line, perpendicular & parallel lines

MYP Mathematics, gradient of a line, perpendicular & parallel lines

How can we find the slope of the line which is perpendicular to the line y=8x+2 ?

The answer is from www.ibmaths4u.com

If two lines are perpendicular their slopes are negative reciprocals and if two lines are parallel have equal slopes.


Regarding your question about the gradient of the line which is perpendicular to the line y=8x+2,
Let be the required slope then we have the following relation

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