Question

What is the inverse of f(x) = 4x + 2?

Hw) = 4x+ 2
o h(x) = 4x-2
h(x) = 3x - 2
h(x) = 3x - 6

Answer 1

Replace

f

(

x

)

with

y

.

y

=

4

x

2

Interchange the variables.

x

=

4

y

2

Solve for

y

.y

=

√

x

2

y

=

−

√

x

2

Solve for

y

and replace with

f

−

1

(

x

)

.

f

−

1

(

x

)

=

√

x

2

,

−

√

x

2

Explanation:

hope this helps