Question

Dada a função afim f(x)=-3x+4,determine: a)f(1) b)f(0) c)f(-5)

Answer 1

f(x) = - 3x + 4

f(1) =

f(1) = - 3.1 + 4

f(1) = - 3 + 4

f(1) = 1

f(0) = 

f(0) = - 3.0 + 4 

f(0) = 4 

f(-5) =

f(-5) = - 3.(-5) + 4

f(-5) = 15 + 4

f(-5) = 11

Answer 2

f(1)= -3x(1)+4
f(1)= -3 + 4
f(1)= 1
--------------------------
f(0)= -3x0 + 4
f(0)= 4
--------------------------
f(-5) = -3x(-5) +4
f(-5)= 15 + 4
f(-5)= 19