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charlotte123
 3 years ago
Choose the equation of the line passing through the point (1, 2) and perpendicular to y = 1/4x + 2.
y = 4x  6
y = 4x  6
y = 4x + 2
y = 4x
charlotte123
 3 years ago
Choose the equation of the line passing through the point (1, 2) and perpendicular to y = 1/4x + 2. y = 4x  6 y = 4x  6 y = 4x + 2 y = 4x

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whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1For two lines to be perpendicular, the product of their slopes must equal 1. The known line is in the slopeintercept form: \(y = mx + b\) where \(m\) is the slope and \(b\) is the yvalue of the yintercept. Use the slope to find the slope of the perpendicular line. Then use the known point to find the value of \(b\) for the perpendicular line.

Charlotte123
 3 years ago
Best ResponseYou've already chosen the best response.0@whpalmer4 so would the answer be a? :P

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1Well, what's the slope of the known line, and what's the slope of the line in a)? If you multiply them together, what do you get?

Charlotte123
 3 years ago
Best ResponseYou've already chosen the best response.0wait a sec I got this wrong >.> can u help me out? :(

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1That's why I'm here :)

Charlotte123
 3 years ago
Best ResponseYou've already chosen the best response.0XD so how do I start? :) this is a pretest, so I dont really know how to solve it or anything D:

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1Okay, look at my first post, where I describe the slopeintercept form. Now look at the equation in the question, and compare them. What is the coefficient of x in the equation? That will be the slope of the line.

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1(the original line, that is)
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