References and Answer Key Provided. MUST SHOW WORK! Textbook: Introduction to Graph Theory by Robert J. Wilson 5th Edition Pg. 86 4.13* Verify Euler's formula for (i) the wheel W; (ii) the graph of the octahedron; (iii) the graph of Fig. 4.13; (iv) the complete bipartite graph KX, ,. REF: FIGURE 413 fy N S Figure 4.13 Figure 4.14 ANSWER KEY (EVEN THOUGH | AM PROVIDING THE ANSWER PLEASE SHOW PROPER WORK ON HOW TO ARRIVE AT THESE ANSWERS): (i) n=8,m =14, f = 8, and 8-14+8=2; (i) n =6, m=12, f = 8, and 6-12+8=2; (i) n =9, m =15, f =8, and 9-15+8=2; (ivyn=9,m=14, f =7, and 9-14+7=2. Show the correct work to get the answers provided to you and organize your work neatly please