Question: When graphing 4x−5y<20, it is not necessary to graph 4x−5y=20.

Answer Options: A. Line not part of solution B. Line does not satisfy inequality C. Boundary line is needed D. Different equation should be graphed

Answer: C. The boundary line is needed to determine the solution region

Question: What is a linear inequality in two variables?

Answer Options: A. Includes nonlinear terms B. Replace = in Ax+By=C with inequality C. Product of variables D. Single-variable inequality

Answer: B. Replace “=” in Ax+By=C with <,≤,>,≥

Question: What does a dashed line mean in the graph of an inequality?

Answer Options: A. Line is part of graph B. Boundary not included in solution C. Line not part of graph D. Line is solution

Answer: B. The boundary line is not included in the solution

Question: A nonlinear system models planetary orbits and shows an intersection point.

Answer Options: A. Orbits are the same B. All planets intersect C. Orbits are circular D. Orbits do not intersect

Answer: D. Planetary orbits do not intersect

Question: A system of linear equations always has infinitely many solutions.

Answer Options: A. Always true B. Infinite or one solution C. Infinite or no solution D. Infinite, one, or no solution

Answer: D. A system can have one, none, or infinitely many solutions

Question: A system in three variables cannot include y=mx+b.

Answer Options: A. Not standard form B. Zero coefficient allowed C. Not linear D. Variables must appear

Answer: B. The coefficient of z can be zero

Question: The of a neuron house neurotransmitters, the chemical messengers of the nervous system.

Answer Options: • dendrites • axons • transport proteins • terminal buttons

Answer: D — terminal buttons

Question: The two major divisions of the nervous system are the

Answer Options: • autonomic; sympathetic nervous systems • parasympathetic; sympathetic nervous systems • central; peripheral nervous systems • autonomic; somatic nervous systems

Answer: C — central; peripheral nervous systems

Question: The nervous system is responsible for stimulating digestion and causing the bladder to contract.

Answer Options: • parasympathetic • sympathetic • autonomic • somatic

Answer: A — parasympathetic

Question: Dmitris is in a car accident and his parietal lobe is injured. Which of the following is the most likely behavioral effect of his accident?

Answer Options: • difficulty breathing • cannot hear • blindness • no sensation in his legs and feet

Answer: D — no sensation in his legs and feet

Question: Shivam has damage to his motor cortex in his right hemisphere. Which of the following is most likely to be true about Shivam’s experience?

Answer Options: • Shivam’s frontal lobe damage has caused weakness in the right side of his body. • Shivam’s parietal lobe damage has caused weakness on the left side of his body. • Shivam’s parietal lobe damage has caused weakness on the right side of his body. • Shivam’s frontal lobe damage has caused weakness on the left side of his body.

Answer: D — Shivam’s frontal lobe damage has caused weakness on the left side of his body.

Question: The space between two neurons is called the ………

Answer Options: • soma • vesicle • terminal button • synapse

Answer: D — synapse