Question

Resolver la función

f (x) = 3x - 1

a) f(x) - f(1)
------------
x - 1

Answer 1

f(x)= 3x-1

f(1)=3(1)-1=2

f(x)-f(1)/x-1= (3x-1 - 2)/x-1 = 3x-3 / x-1 = 3(x-1)/x-1 = 3

f(x)-f(1)/x-1= 3