Question

dada a função f(x)=3x+5, determine f(-3) e f(0)

Answer 1

Olá !

f(x) = 3x + 5

f(-3) = 3 . (-3) + 5
f(-3) = - 9 + 5
f(-3) = - 4

------------------------------------------------------------------------------------------------------------------------

f(0) = 3 . 0 + 5
f(0) = 5     

Answer 2

f(x)= 3x + 5
f(-3) = 3.(-3) +5
f(-3)= -9 + 5
f(-3)= -4

f(x)=3x + 5
f(0)= 3.0 + 5
f(0)= 0 + 5
f(0)= 5