Answer:
option C. 50 grams
Step-by-step explanation:
we know that
The size of the sample at the beginning of the experiment is equal to the y-intercept or initial value of the function
Remember that the y-intercept is the value of y when the value of x is equal to zero
In the context of the problem, the y-intercept is the size of the sample at the beginning of the experiment (x=0)
Looking at the graph
For x=0, y=50
therefore
The size of the sample at the beginning of the experiment was 50 grams
