Question

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

Answer 1

@hartnn

Answer 2

then (2,3) will lie on that graph

Answer 3

f(x)=0

Answer 4

So -18 is the answer ? @hartnn

Answer 5

3=18+A

Answer 6

^ please Explain ? @hartnn

Answer 7

put 2,3 in that equation

Answer 8

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

Answer 9

f(x)=18+A

Answer 10

What next ? @hartnn

Answer 11

3= 18+A

Answer 12

f(x) =3 when x = 2

Answer 13

So how come f(x)=3 ?

Answer 14

@hartnn

Answer 15

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

Answer 16

Thanks Alot.