SOLUTION: Write and equation of the line described: Contains (4,9) and is perpendicular to the graph of y = 7x + 3/8.

Algebra ->  Graphs -> SOLUTION: Write and equation of the line described: Contains (4,9) and is perpendicular to the graph of y = 7x + 3/8.      Log On


   



Question 123244This question is from textbook Algebra1
: Write and equation of the line described:
Contains (4,9) and is perpendicular to the graph of y = 7x + 3/8.
This question is from textbook Algebra1

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Write and equation of the line described:
Contains (4,9) and is perpendicular to the graph of y = 7x + 3/8.
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The given line has slope = 7
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The line you want must have slope = -1/7
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Equation form is y=mx+b and you know m,x and y; so slove for "b":
9 = (-1/7)*4 +b
9 = -4/7 + b
b = 67/7
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EQuATION:
y = (-1/7)x + (67/7)
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Cheers,
Stan H.