SOLUTION: Write the equation of the line which has y-intercept (0, 5) and is perpendicular to the line with equation y = –3x + 1. (A) y = – x + 5 (B) y = 3x + 5 (C) y = –3x + 5 (D) y =

Algebra ->  Equations -> SOLUTION: Write the equation of the line which has y-intercept (0, 5) and is perpendicular to the line with equation y = –3x + 1. (A) y = – x + 5 (B) y = 3x + 5 (C) y = –3x + 5 (D) y =      Log On


   



Question 69823: Write the equation of the line which has y-intercept (0, 5) and is perpendicular to the line with equation y = –3x + 1.
(A) y = – x + 5
(B) y = 3x + 5
(C) y = –3x + 5
(D) y = x + 5

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Write the equation of the line which has y-intercept (0, 5) and is perpendicular to the line with equation y = –3x + 1
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I don't think any of the answers given are right:
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Find the slope of a line perpendicular to y = -3x + 1; let m2 = -3
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The relationship of the slopes of lines which are perpendicular is:
m1*m2 = -1
m1(-3) = -1; find m1
m1 = -1/-3
m1 = (1/3)
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Use the point/slope equation; y-y1 = m(x-x1) and y intercept coordinates; 0,5
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y - 5 = (1/3)(x - 0
y = (1/3)x + 5
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A graphical presentation:
+graph%28+300%2C+300%2C+-6%2C+6%2C+-6%2C+6%2C+.333x%2B5%2C+-3x%2B1%29+
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