Question

dada a função quadrática f(x)= 2x²- 5x+1,determine:

a)f(0)

b)f(3)

c)f(2)

d)f(-1)

e)f(-2)

f)f(-3)

g)f(5)

h)f(4)

i)f(-6)

Answer 1

Resposta:

Explicação passo-a-passo:

f(0)=2.0²-5.0+1=0+0+1=1

f(3)=2.3²-5.3+1=2.9-15+1=18-15+1=3+1=4

f(2)=2.2²+5.2+1=2.4+10+1=8-10+1=-2+1=-1

f(-1)=2.-1²+5-1+1=2.1-5.-1+1=2+5+1=8

f(-2)=2.-2²-5.-2+1=2.4+10+1=8+10+1=19

f(-3)=2.-3²-5.-3+1=2.9+15+1=18+15+1=34

f(5)=2.5²-5.5+1=2.25-25+1=50-25+1=25+1=26

f(4)=2.4²-5.4+1=2.16-20+1=32-20+1=12+1=13

f(-6)= 2.-6²-5.-6+1=2.36+30+1=72+30+1=103