Graph the linear function. Give the domain and range.f(x) = 
x
A. Domain: (-?, ?)
Range: (-?, ?)
B. Domain: (-?, ?)
Range: (-?, ?)
Answer: B
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Solve the system using the matrix inverse method. 7x - 3y - z = 28 x - 6y - 3z = -27 8x + y + z = 56
A. ? B. {(-6, 3, 12)} C. {(6, 5, 3)} D. {(6, 3, 5)}
Solve the problem.A telephone costs $460. If the sales tax rate is 4%, how much tax is charged and what is the total price? Round your answers to the nearest cent.
A. $18.40, $478.40 B. $23.00, $483.00 C. $13.80, $473.80 D. $184.00, $644.00
Solve the problem.Decide which of the rational functions might have the given graph. 
A. R(x) = 
B. R(x) = 
C. R(x) = 
D. R(x) = 
Find all solutions to the equation. Express the solution in degrees.cot x + 
= 0
A. 150° + 360°n B. 150° + 180°n C. 330° + 360°n D. 150° + 180°n or 330° + 360°n