A straight line (l) has equation , which of the following is the slope of a perpendicular line to line (l)?
(A)
(B)
(C)
(D)
Thanks!
A straight line (l) has equation , which of the following is the slope of a perpendicular line to line (l)?
(A)
(B)
(C)
(D)
Thanks!
In order to find the slope of a line we must rewrite the equation to slope-intercept form i.e. where is the slope.
So, the equation can be written as
Thus the slope of line (l) is .
The slope of a perpendicular line to line (l) must be satisfy the following equation
Therefore the correct answer is (C).
Hope these help!!
Thank you!!
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