Question

3) Seja a função f (x) = 4x - 3, calcule: a) f (-2) = b) f (a + 1) = c) f (x + h) = d) f (x) + f (h) =

Answer 1

a-
f(-2)=4.(-2)-3=-8-3=-11

b-
f(a+1)= 4(a+1)-3=4a+4-3=4a+1

c-
f(x+h)=4(x+h)-3= 4x+4h-3

d-
f(x)=4x-3
f(h)=4.h-4=4h-3

4x-3+4h-3= 4x+4h-6