Answer: f(0) = 6
Explanation:
f(0) means, when x is equal to the value 0, what is the y value?
To find f(0) on the graph, first look for 0 on the x axis.
Next, see if the the function has a point, where the x value is equal to zero.
This is shown at (0, 6)
So f(0) = 6