Find the domain of the rational function.f(x) = 
A. {x|x ? -4, 4, -7}
B. {x|x ? 0, -16}
C. {x|x ? -4, 4}
D. all real numbers
Answer: B
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Use dimensional analysis to solve the problem.Jarod calculated the speed of a train to be 29 ft/sec. Calculate the speed in miles per hour. Round answers to the nearest whole number.
A. 16 mi/hr B. 23 mi/hr C. 20 mi/hr D. 17 mi/hr
Graph the inequality.y < 
x
A. 
B. 
C. 
D. 
Find the vertex.f(x) = -x2 + 16x - 71
A. (-8, -7) B. (7, -8) C. (8, -7) D. (8, 7)
Use an ordered pair to identify each point on the given coordinate plane. State the quadrant or axis where each point lies.
A. A(3, 0) on the x-axis; B(1, -4) in Quadrant IV B. A(-3, 0) on the y-axis; B(-1, -4) in Quadrant III C. A(-3, 3) in Quadrant II; B(1, -4) in Quadrant IV D. A(-3, 0) on the x-axis; B(1, -4) in Quadrant IV