SOLUTION: For the function f(x) = 7-3x, find its inverse and graph both on the same set of axes (be sure to label which is which) Thanks very much.

Algebra ->  Rational-functions -> SOLUTION: For the function f(x) = 7-3x, find its inverse and graph both on the same set of axes (be sure to label which is which) Thanks very much.      Log On


   

Question 92098: For the function f(x) = 7-3x, find its inverse and graph both on the same set of axes (be sure to label which is which)
Thanks very much.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
For the function f(x) = 7-3x, find its inverse and graph both on the same set of axes (be sure to label which is which)
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Inverse: Interchange x and y and solve for y as follows:
x = 7-3y
3y=-x+7
y = (-1/3)x+(7/3)
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graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C7-3x%2C%28-1%2F3%29x%2B%287%2F3%29%29
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Cheers,
Stan H.