The function ,

where represents luxury Tax in million dollars and

represents the payroll  in million dollars and exceeded $.

(a)

Find the Implied domain of this linear function.

The pay roll exceeded $.

Hence the domain of the function is or .

(b)

Find the luxury Tax when payroll is $ .

Substitute in the function .

Luxury Tax is $ million.

(c).

Graph :

The function is .

The Slope of the function is .

The pay roll , hence the graph starts from the point .

From part(b),consider the point

The point is , move the point untis upward and units right to the point .

(d).

Find payroll when the  Luxury tax  million

Substitute    in the function .

The Payroll is $ million.

(a) or .

(b) Luxury Tax is $ million.

(c)

Graph :

(d) The Payroll is $ million.