The cost, y, in dollars, of parking a car for x hours at a parking lot during the day is shown using the function below.
2x, OSX54
, 4 Which of the following graphs models the cost of parking at this parking lot?

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

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