Use the graph to determine the function's domain and range.
A. domain: (-?, ?)
range: y = -5
B. domain: x = - 
range: (-?, ?)
C. domain: x = - 
range: y = -5
D. domain: (-?, ?)
range: (-?, ?)
Answer: D
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Provide an appropriate response.Solve the system of equations using the substitution method:3x + y = 11x + 2y = 12
A. (5, 2) B. (2, 5) C. (-2, 7) D. (22, -5)
The average rate of change of a function f on the interval [a, b] is best represented by the slope of:
a. The secant line that intersects f at (a, f(a)) and (b, f(b)) b. The tangent line that touches f at (a, f(a)) c. The tangent line that touches f at (b, f(b)) d. The secant line that intersects f at (f(a), f(b)) and (a, b)
Provide an appropriate response.Explain why the solution of a system of equations is the point of intersection of the graphs of the equations.
What will be an ideal response?
A person standing 150 centimeters from a mirror notices that the angle of depression from his eyes to the bottom of the mirror is 14°, while the angle of elevation to the top of the mirror is 12°. Find the vertical dimension of the mirror (see the figure). Round to the nearest degree.
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?
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A. 79 cm B. 71 cm C. 68 cm D. 69 cm E. 72 cm