Question

Dada a função f dada por f(x) = 2x + 1, calcule:
f-1(3)

Answer 1

f(x) = 2x + 1

y =2x+1

2x=y-1

x = y-1/2

f-¹(x) = x-1/2

f-¹(3) = 3-1/2 = 2/2 = 1 ✓