Question

Dada a função f(x)= 2x+4, calcule:

Answer 1

Resposta:

f(x) = 2x + 4

a) f(0) = 2×0 + 4

f(0) = 0 + 4

f(0) = 4

b) f(-5) = 2 × (-5) + 4

f(-5) = -10 + 4

f(-5) = -6

c) f(-11) = 2 × (-11) + 4

f(-11) = -22 + 4

f(-11) = -18

$d) f(x) = 2x + 4 \\ f( \frac{1}{2} ) = 2 \times \frac{1}{2} + 4 \\ f( \frac{1}{2} ) = \frac{2}{2} + 4 \\ f( \frac{1}{2} ) = 1 + 4 \\ f( \frac{1}{2} ) =5$

$e)f( - \frac{1}{3} ) = 2 \times \frac{1}{3} + 4 \\ f( - \frac{1}{3} ) = \frac{2}{3} + 4\\f( - \frac{1}{3} ) = 0.7 + 4 \\ f( - \frac{1}{3} ) = 4.7$

ESPERO TER AJUDADO!!!