Problem $1$

Provide a graph of Prob. #$8\mathrm{.}20$ textbook solution results by plotting a curve or a series of cycles of crash in steps, plotting TOTAL COST vs$.$ DURATION. Elements of your graph at least should include: ND$,$ NC$,$ CD$,$ CC$,$ LCD, and LC along the curve.

Please Plot a graph of the given table.

$\backslash$table$[[,,$Duration $($days$),,$Cost $($$$)],[$Activity$,$IPA,Normal,Crash,,Normal,Crash$],[$A$,-,7,5,,500,640],[$B$,$A$,6,5,,550,630],[$C$,$A$,8,5,,800,935],[$D$,$B$,10,7,,1,200,1,440],[$E$,$B$,$ C$,6,4,,600,700],[$F$,$C$,4,3,,500,590],[$G$,$D$,$ F$,4,2,,700,1,000],[$H$,$E$,$ F$,7,4,,650,950],[$I$,$G$,$ H$,2,2,,300,300]]$

$\backslash$table$[[,,$Duration $($days$),,$Cost $($$$)],[$Activity$,$IPA,Normal,Crash,,Normal,Crash$]$