What is the slope of the line perpendicular to $y=-3x-7$ ?

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Answer 1 · 2016-05-07T11:08:50

$m_2 = +1/3$

In $y = color(red)(-3)x - 7$ , the slope is $color(red)(-3).$

If two lines are perpendicular, then the one slope is the negative reciprocal of the other. $m_1 xx m_2 = -1$

(In easy language, turn the slope upside down and change the sign)

So if $m_1 = -3/1, " "$ then $m_2 = +1/3$

What is the slope of the line perpendicular to y=-3x-7 y=-3x-7 ?