Question

If f(x-3) = 10x+7 Then find f(x) and f(-2)​

Answer 1

Step-by-step explanation:

Let f

−1

(x)=y ---- ( 1 )

⇒ f(y)=x

It is given that, f(x)=10x−7, then f(y)=10y−7.

⇒ 10y−7=x

⇒ 10y=x+7

⇒ y=

10

x+7

From ( 1 ),

⇒ f

−1

(x)=

10

x+7