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OpenStudy (anonymous):
Is the equation f(x)=3x+2 a function??
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
Yes. All polynomials are functions, and the domain doesn't even have any restrictions. You can check by graphing it and using the vertical line test.
OpenStudy (anonymous):
Alright and can you tell me the inverse of that function please?!
OpenStudy (anonymous):
Four steps: 1) Let f(x) = y = 3x+2. 2) f^-1(x) is implied by x=3y+2. (Switch all the x's and y's). 3) Solve for y, in this case, y =x/3-2/3 4) y=x/3-2/3=f^-1(x).
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