Question

Determine os zeros das funções reais.
a) F(x) = x+1
b) f(x) = 3x -6
c) f(x) = -2x +10
d) f(x) = 2x +10

Answer 1

Explicação passo-a-passo:

a)

$\color{violet}{\Large\bf{f(x) = x + 1}}$

$\color{violet}{\Large\bf{0 = x + 1}}$

$\color{violet}{\Large\bf{ - x = 1}}$

$\boxed{ \color{violet}{\Large\bf{x = - 1}}}$

b)

$\color{violet}{\Large\bf{f(x) = 3x - 6}}$

$\color{violet}{\Large\bf{0 = 3x - 6}}$

$\color{violet}{\Large\bf{ - 3x = - 6}}$

$\color{violet}{\Large\bf{x = \frac{ - 6}{ - 3} }}$

$\boxed{ \color{violet}{\Large\bf{x = 2}}}$

c)

$\color{violet}{\Large\bf{f(x) = - 2x + 10}}$

$\color{violet}{\Large\bf{0 = - 2x + 10}}$

$\color{violet}{\Large\bf{2x = 10}}$

$\color{violet}{\Large\bf{x = \frac{10}{2} }}$

$\boxed{ \color{violet}{\Large\bf{x = 5}}}$

d)

$\color{violet}{\Large\bf{f(x) = 2x + 10}}$

$\color{violet}{\Large\bf{0 = 2x + 10}}$

$\color{violet}{\Large\bf{ - 2x = 10}}$

$\color{violet}{\Large\bf{x = \frac{10 }{ - 2} }}$

$\boxed{ \color{violet}{\Large\bf{x = - 5}}}$

$\green{ \boxed{{\mathbb{ATT: ARMANDO}}}}$