Question

Dada a função f(x) = ax+b, f(0) = -1 e f(2) = 3. Determine f(x)

Answer 1

f(x)=ax+b
f(0)= a.0+b= -1 → b=-1
f(2)= a.2+(-1)=3 → 2a=4 → a=2

f(x)=2x - 1