The cost of hosting a party at a horse farm is a flat fee of $250, plus $5 per person. the total charge for a party of x people is f(x)=5x+250. how will the graph of this function change if the flat fee is lowered to $200? if the per-person rate is raised to $8?

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)