Question

5- Dada a função y = 2x − 3, qual o valor de f(−1) + f(2) − f(0)?

Answer 1

f(-1)=2.(-1)-3= -2-3=-5

f(2)= 2.2-3=4-3=1

f(0)=2.0-3=0-3=-3

Portanto

f(-1)+f(2)-f(0)= -5 +1 -(-3)= -4+3= - 1