3. if f(x)= 3x+ 2 , what is the equation for f^-1(x)

option 3 ⇒ f⁻¹(x) =  

Step-by-step explanation:

Given F(x) =

let y = f(x)

y =   ⇒ squaring the both sides

y² = 3x + 2  ⇒ subtract 2 from both sides

y² - 2 = 3x ⇒ divide both sides by 3

replace the location of x and y

∴ y =

So, y will be f⁻¹(x)

∴ f⁻¹(x) =  

answer: 1, 3 and 5 are correct

step-by-step explanation: