Graph the linear function and give the domain and the range. If the function is a constant function, identify it as such.f(x) = 
x - 3
A. D = (-?, ?), R = (-?, ?)
B. D = (-?, ?), R = (-?, ?)
C. D = (-?, ?), R = (-?, ?)
D. D = (-?, ?), R = (-?, ?)
Answer: D
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Determine whether the graph of the equation or function has symmetry about the x-axis, the y-axis, and the origin.f(x) = 2x2 + 5
A. Origin B. y-axis C. x-axis D. No symmetry
Provide an appropriate response.A hiker falls to a ledge. The rescue workers want to know how far down the cliff the hiker is located. One worker finds angles of elevation to the hiker and to the second rescue worker at the top of the cliff. Determine the distance between the ledge that the hiker is on and the top of the cliff. 
A. 77.3 ft B. 45.5 ft C. 40.5 ft D. 72.4 ft
Match the given equation with one of the graphs.4x2 + 25y2 = 100
A. 
B. 
C. 
D. 
Solve the system of equations by substitution.
A. x = 7, y = 12; (7, 12) B. x = 3, y = 7; (3, 7) C. x = 12, y = -2; (12, -2) D. x = -2, y = 3; (-2, 3)