Question

1 - Dada a função f(x) = -2x + 5, determine:
a) f(2)
b) f(-2)
c) f(0)
d) f(2,5)
e) f(-3)​

Answer 1

Explicação passo-a-passo:

f(x)= -2x +5

a) f(2)= -2.2+5

f(2)= -4+5

f(2)= +1

b) f(-2)= -2.(-2)+5

f(-2)= +4+5

f(-2)= 9

c) f(0)= -2.0+5

f(0)= +5

d) f(2,5)= -2.(2,5) +5

f(2,5)= -5+5

f(2,5)= 0

e) f(-3)= -2.(-3)+5

f(-3)= +6+5

f(-3)= 11