Choose the equation of the line passing through the point (-1, 7) and perpendicular to y = -1/4x - 5.

y = -4x - 11

y = -4x - 3

y = 4x + 11

y = 4x + 3

Question

Choose the equation of the line passing through the point (-1, 7) and perpendicular to y = -1/4x - 5.

 y = -4x - 11

 y = -4x - 3

 y = 4x + 11

 y = 4x + 3

magbak · Answer

Ok so If the lines are perpendicular |dw:1374185895200:dw| then the slope is the opposite negative reciprocal meaning if the slope is say 2 then the slope of the perpendicular line is -1/2. Also if the lines parallel meaning they do not touch |dw:1374186014506:dw| then the slope is the same so if the slope of a parallel line is 2 then the other slope is also 2.

anonymous · Answer

@magbak Thanks, but I'm not sure how to apply that to this question.....I'm not very good at math.....

magbak · Answer

Ok so the answer is C

anonymous · Answer

@magbak ohhhhhh I see how you get it now

magbak · Answer

Ok