A 1250 W hair dryer was used for 10 minutes a day for 30 days. A. How much electrical energy was used during this time, in joules? (2 marks)
B. How much electrical energy was used during this time, in kilowatt hours? (2 marks)
C. If the electric company charged 8 cents per kW-h, how much would it cost to use the
hair dryer during this period of time? Express your answer in dollars, to the nearest
penny. (1 marks)

go hook jvc hgv cj xk jvc 6756

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.