Answer:
f(0) = 1
Step-by-step explanation:
The graph given to us shows that we have 2 values for <em>y</em> when <em>x</em> = 0. Since point (0, 0) is an open dot, it is not included in the function, meaning it is not usable. The other point, (0, 1), is a closed dot, so we can use that. Therefore, f(0) = 1.