Question 122715: Write an equation in slope-intercept form for the line that is perpendicular to the line y = (-1/3)x + 4 that passes through the given point (-4,2). That is just one question. I have another question....
Write an equation in slope-intercept form for the line that is parallel to the line y = -4x + 5 and that passes through the given point (-8,5).
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Write an equation in slope-intercept form for the line that is perpendicular to the line y = (-1/3)x + 4 that passes through the given point (-4,2).
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The slope must be 3 if the line is to be perpendicular.
The form is y=mx+b and you know y,x, and m; solve for "b":
2 = 3*-4 + b
b = 14
EQUATION:
y = 3x+14
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That is just one question. I have another question....
Write an equation in slope-intercept form for the line that is parallel to the line y = -4x + 5 and that passes through the given point (-8,5).
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The slope must be -4 if the line is to be parallel.
The form is y = mx+b and you know y,x, and m; solve for "b":
5 =-4*-8+b
5 = 32+b
b = -27
EQUATION:
y = -4x-27
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Cheers,
Stan H.
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