A cell phone plan has a basic charge of $30 a month. The plan includes 400 free minutes and charges 10 cents for each additional minute of usage. Write the monthly cost C (in dollars) as a functionof the number x of minutes used.C(x) =5030Graph C as a function of x for 0 ≤ x ≤ 600.сс50if30if x >≤x≤400400600600X50Oс30503000WebAssign Plot400400600600XX

A cell phone plan has a basic charge of $30 a month. The plan includes 400 free minutes and charges 10 cents for each additional minute of usage. Write the monthly cost C (in dollars) as a functio of the number x of minutes used. C(x) = 50 30 Graph C as a function of x for 0 ≤ x ≤ 600. с с 50 30 if 0 if x > SXS 400 400 600 600 X с 50 30 C 50 30 WebAssign Plot 400 400 600 600 X X