ANSWER and EXPLANATION
A) We want to find f(0).
This implies that we want to find the value of the function at x = 0.
To do this, check for x = 0 on the graph, trace it to the graphed line and see where it lands.
We have that x = 0 is on the upper line, hence, we check for the value of the function with that line.
Therefore, from the graph, we have that:
B) To find f(-1), locate x = -1 on the x-axis trace it in the same way, and see which of the lines it touches. In this case, it seems to touch both lines but we see that it touches the upper line at the open spot. This means that the function does not take any value at that spot.
Hence, we use the lower line for f(-1)
Therefore, from the graph:
C) The domain of a function is the set of all x values of the function.
The domain of the given function is all real values of x, or:
The range of the given function is the set of all y values of the function.
Hence, the range of the function is:
