Question

Which of the following is the function C(d) if C^-1 (e) = 10e + 3?

A.) C(d) = d/10-3

B.) C(d) = 10d - 3

C.) C(d) = d+3/10

D.) C(d) = d-3/10

 

Answer 1

Inverse function is 10e + 3.

 C^-1(e) = 10e + 3.

Change  C^-1(e)  to d

d = 10e+3

Now solve for e.

Subtract 3 from each side.

d - 3 =10e

Divide each side by 10.

e = (d - 3)/10

Change e to C(d) .

C(d) = (d - 3)/10

So option D is correct.