HELP PLEASE quickly math problem 11th grade

Let's solve this problem step-by-step:
Let's examine this graph to see what information we gain:
That means the function was stretched vertically or in the direction of the y-axis:
⇒ [tex]g(x)=\frac{1}{2} f(x)[/tex]
Thus the answer is the first choice
Answer: First choice or [tex]g(x)=\frac{1}{2} f(x)[/tex]
Hope that helps!