Question

evaluate the function graphically.
find ( f(-1) )

Explanation:

Step1: Locate x = -1 on x - axis

Find the position of \( x=-1 \) on the horizontal (x - axis) of the graph.

Step2: Find the corresponding y - value

From \( x = - 1\), move vertically until we meet the graph. The filled dot (which represents the function's value at \( x=-1 \)) has a y - coordinate of 2. So, to evaluate \( f(-1) \), we look at the y - value of the point on the graph where \( x=-1 \).

Answer:

\( f(-1)=2 \)