If y − 1 = 4x, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?

{(1, 4), (2, 8), (3, 12)}
{(4, 1), (8, 2), (12, 3)}
{(0, 1), (1, 5), (2, 9)}
{(1, 0), (5, 1), (9, 2)}

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Which expression is equivalent to (4x^3*y^5)(3x^5*y)^2 \a) 24x^13*y^7b) 36x^13*y^7c) 36x^28*y^7d) 144x^16*y^12

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