Question

Esboce o gráfico das funçoes atribuindo valores de -1 a 4

F(x)=-x²-4x+12

Ajuda ae galera

Answer 1

f(-1)=1^2-4×(-1)+12

f(-1)=1+4+12=17

f(0)=0^2-4×0+12

f(0)=0-0+12=12

f(1)=1^2-4×1+12

f(1)=1-4+12=9

f(2)=2^2-4×2+12

f(2)=4-8+12=8

f(3)=3^2-4×3+12

f(3)=9-12+12=9

f(4)=4^2-4×4+12

f(4)=16-16+12=12