Find an equation for the inverse for each of the following.

3. y = -8x + 2

f⁻¹(x) = -(18)x + 1/4

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4. y = (2/3)x - 5

f⁻¹(x) = 1.5x + 7.5

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5. f(x) = 2x² - 6

f⁻¹(x) =

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6. y = (x - 3)²

f⁻¹(x) = 3 +  

the infinity sign

step-by-step explanation:

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: