Respuesta :

Answer:

absolute value makes everything positive instead of negative so since you didn't even really ask a question I'm just going to solve the problem without a point

f(x)=3x+4

f(x) = 3x - 4

f'(x) = x

x = 0

et

3x - 4 = 0

3x = 4

x = 4/3

3 * 0 - 4 = 0 - 4 = - 4

3 * 4/3 - 4 = 0

f(x) = I3x - 4I = I-4 ; 0I