Question

Dada a função f(x) = 2 x + 3 , determine

A) f(x)=0



Dada a funão f (x) = - 2x + 3 , determine f(1)

Answer 1

A) f(x) = 0

f(x) = 2x + 3

0 = 2x + 3
2x = - 3
x = -3/2


B) f(1)

f(x) = -2x + 3

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