Question

dada a função f(x) = 2x +1, calcule f(2), f(-1) e f(0)

Answer 1

f(2) = 5

f(x) = 2x +1

f(2) = 2.2 +1

f(2) = 4 + 1

f(2) = 5

f(-1) = -1

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

f(-1) = -2 + 1

f(x) = -1

f(0) = 1

f(0) = 2.0 +1

f(0) = 0 + 1

f(0) =1