We have the following:
What we must do is analyze each option to obtain the answer
A.
Both functions pass at the origin, because since x is equal to 0, f (x) is also equal to 0
B.
Passing through the origin, both functions are linear
C.
Incorrect, because when passing through the origin, the y-intercept would be 0
D.
Incorrect, on the contrary the function 0.5 f (x) is steeper
Therefore, the answer are the option A and B
