Question

if f(x) = 2x+3/4 find f^-1 (2x-5)

Answer 1

Answer:

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Answer 2

f^-1(2x-5)=x - 23/8

Step-by-step explanation:

f(x) = 2x+3/4=y

==> x = (y/2) - 3/8

now ,

f(x)=y

==>f^-1(y)=x

==>f^-1(y) = (y/2) - 3/8

==> f^-1(x)=(x/2)- 3/8

==>f^-1(2x-5)=((2x-5)/2)- 3/8= x - 5/2 - 3/8=x - 23/8

==>f^-1(2x-5)=x - 23/8