Which system is represented by the graph?
A. y=3x-2 y=3x-1
B. y=-3x-2 y=-3x-1
C. y=1/3x-2 y=1/3x-1
D. y=3x+2 y=3x+1

(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.)