Question

which edges shown on the graph to the right are not included in the following path?
a, b, c, d, f, f

select all that apply
□ a. cd
□ b. ff
□ c. ab
□ d. de
□ e. df
□ f. bc
□ g. ac

Explanation:

Step1: Analyze the given path

The path is \(A - B - C - D - F - F\).

Step2: Check each edge

• For edge \(CD\): It is in the path \(C - D\).
• For edge \(FF\): It is in the path \(F - F\).
• For edge \(AB\): It is in the path \(A - B\).
• For edge \(DE\): There is no \(D - E\) in the path \(A - B - C - D - F - F\).
• For edge \(DF\): There is no \(D - F\) (the path goes \(D - F\) but we check if it's part of the given path structure. Wait, no, the path is \(A - B - C - D - F - F\), so \(D - F\) is there. Wait no, wait the path is \(A,B,C,D,F,F\). The edges are \(AB\), \(BC\), \(CD\), \(DF\) (from \(D\) to \(F\)), \(FF\).
• For edge \(BC\): It is in the path \(B - C\).
• For edge \(AC\): There is no \(A - C\) in the path \(A - B - C - D - F - F\).

Answer:

D. \(DE\), G. \(AC\)