Answer:
The answer to your question is: third option, it's a parabola
Step-by-step explanation:
f(x) = (x + 4)²
f(x) = x² + 4
f(x) = (x - 4)² I think this is the right answer, because when get the vertex, the signs are changed, if the -4 is negative, it means that the graph must be located in +4.
f(x) = x² - 4
Answer: The answer is 5a+13
Step-by-step explanation:

So y=2x is the only answer that fit y=kx, while k=2
Answer:
option 2
Step-by-step explanation: