HOW does this just happen?? (1 Viewer)

iamastar · Jun 29, 2016

How does -5/3 turn into 3/5 when finding the gradient?

D94 · Jun 29, 2016

To find a line perpendicular to another line, the relationship between the gradients is: m₁m₂ = -1.

If the gradient of a line is -5/3, then you need to multiply by 3/5 to get -1, so the perpendicular gradient is 3/5.

InteGrand · Jun 29, 2016

iamastar said:
How does -5/3 turn into 3/5 when finding the gradient?

$\noindent Recall that the slope of a line perpendicular to a line with slope $m$ is $-\frac{1}{m}$, because the product of slopes of perpendicular lines is $-1$.$

HOW does this just happen?? (1 Viewer)

iamastar

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D94

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InteGrand

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