Question

Seja a funçao f(x)=6x +7, calcule:
a) f(5)
b) f(2)
c) f(-1)

Answer 1

a)6×5+7
30+7
37

b)6×2+7
12+7
19

c)6×-1+7
-6+7
1

Answer 2

f(5)= 6.5 +7 = 30 + 7 = 37
f(2)= 6.2 + 7 = 12 + 7 = 19
f(-1)= 6.(-1) +7 = -6 + 7 = 1