Choose the equation of the line passing through the point (-1, -2)and perpendicular to y = 1/4x + 2

y = -4x - 6
y = 4x
y = 4x - 6
y = -4x + 2

Question

Choose the equation of the line passing through the point (-1, -2)and perpendicular to y = 1/4x + 2


		y = -4x - 6
		y = 4x
		y = 4x - 6
		y = -4x + 2

campbell_st · Answer

the slope of your given line is m = 1/4   the slope of the perpendicular is the negative reciprocal of the given slope.... so slope of the perpendicular is m = -4

the line equation is y = -4x + b

substitute x = -1 and y = -2 to find the value of b, the y-intercept. 

then you have the equation  of the line.

anonymous · Answer

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