For the function f ( x ) = 1/4 x + 4 , find the value of x for which f ( x ) = x

Question

I'm needing an explanation I really don't understand it.

Answer 1

You need to find value(s) of x such that f(x)=x.

This means that you have to solve the equation

(1/4)x+4=x

x-(1/4)x=4

(3/4)x=4  (x 4/3)

x=4*(4/3)

x=16/3