Question

1) Dada a função f(x) = -9x +5 determine f(55) e f(100)
2) Sendo f(x) = 5x+1 e g(x)=4x +2, calcule: a) f(98) + g(103)

Answer 1

Substituindo na f(x)

1)
A) f(55)=-9(55)+5
f(55)=-495+5
f(55)=-490

B)f(100)=-9(100)+5
f(100)=-900+5
f(100)=-895

2)
f(x) =5x+1
g(x)=4x+2

a)f(98)+g(103)

f(98)=5(98)+1
f(98)=491

g(103)=4(103)+2
g(103=414

a=491+414
A)905