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What is the slope of a line that is perpendicular to a slope of 1/2?

Answer 1

Eli Assouline

#-2#

Consider the standard equation of a #ul("straight")# line

#y=mx+c" "# where #m# is the gradient (slope)

The gradient of a straight line perpendicular to the first one will be #-1/m#

Given that #m=1/2# then the perpendicular line will have the

gradient of #" "-2/1 -> -2#

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Answer 2

Avery Alexander

The slope of a line perpendicular to a line with slope (m) is the negative reciprocal of (m). So, the slope of a line perpendicular to a slope of (1/2) is (-2).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.