hba
The point (3,2) lies on the graph of the inverse of f(x)=2x^3+x+A.The Value of A is :



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hba
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@hartnn

hartnn
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then (2,3) will lie on that graph

hba
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f(x)=0

hba
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So 18 is the answer ? @hartnn

hartnn
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3=18+A

hba
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^ please Explain ? @hartnn

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put 2,3 in that equation

hba
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f(x)=2(2)^3*2+A

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f(x)=18+A

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What next ? @hartnn

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3= 18+A

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f(x) =3 when x = 2

hba
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So how come f(x)=3 ?

hba
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@hartnn

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to put point (2,3) means
f(x) =3 when x = 2

hba
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Thanks Alot.