Let's examine the graph to answer the two questions:

1. (a) Find one value of $x$ for which $f(x) = 3$:

   Looking at the graph, we need to identify where the function $f(x)$ intersects the line $y = 3$. From observation, one value of $x$ where $f(x) = 3$ appears to be at $x = 2$.

2. (b) Find $f(1)$:

   To find $f(1)$, locate $x = 1$ on the graph and check the corresponding $y$-value. From the graph, it seems that when $x = 1$, $f(1) = -2$.

Thus:

• (a) $x = 2$
• (b) $f(1) = -2$

Would you like more details, or do you have any further questions?

Here are 5 related questions:

1. How do you determine values from a function graphically?
2. Can there be more than one solution for $f(x) = 3$?
3. What is the meaning of the zeros of a function on a graph?
4. How can we estimate the behavior of a function beyond the visible graph?
5. What happens if a function is not continuous?

Tip: Always check the graph carefully to ensure you're interpreting the function's values correctly.