Question

Me ajudem dada a função f(x)=3x-1 calcule: f(2) , f(-3) , f(0) , f(1)-f(0) , f(4)+2f(12)?

Answer 1

f(2) = 6 -1
f(2) = 5

f(-3) = -9 - 1
f(-3) = -10

f(0) = 0 - 1
f(0) = -1

f(1) = 2
f(0) = -1 
f(1) - f(0) = 1

f(4) = 11
f(12) = 35
f(4) + 2f(12) = 11 + 70 
f(4) + 2f(12) = 81