Answer:
the first, second and fifth ones
Step-by-step explanation:
The value of f(5) is 
Step-by-step explanation:
The function is 
To find
substitute
in 

Multiplying the terms, we get,

Adding the terms, we get,

Thus, the value of
is 
1/2 x 3/4
1 x 3 / 2 x 4
= 3/8
Answer: The equation not represent a proportional relationship because the line don't passes through the origin
Step-by-step explanation: