MATH 208 Midterm Review (Latest Update)
Questions and Verified Answers| 100%
Correct| Grade A- Concordia
Q: Revenue Function
Answer:
𝑅(𝑋) = 𝑥 ∗ 𝑝(𝑥)
Q: Profit Function
Answer:
𝑃(𝑥) = 𝑅(𝑥) − 𝐶(𝑥)
Q: state the quadratic formula
Answer:
(−𝑏 ± √ (𝑏 2 − 4𝑎𝑐))
𝑥 =
2𝑎
Q: vertex form of the quadratic function
Answer:
𝑓(𝑥) = 𝑎(𝑥 − ℎ)2 + 𝑘
Q: how to find the vertex of the quadratic function
, Answer:
(ℎ, 𝑘)
Q: find the break-even points
Answer:
𝑆𝑒𝑡 𝑅(𝑥) = 𝐶(𝑥)
Q: explain the direction of opening of a parabola
Answer:
if a>0: opens upward if a<0: opens downward
Q: given the p(x) and R(x) and the domain, find the maximum revenue
Answer:
max. revenue: the maximum value can be found (if a<0) by finding x= -b/2a
Q: in terms of break-even analysis: R(x) < C(x) is a ....
Answer:
LOSS
Q: in terms of break-even analysis: R(x) > C(x) is a ....
Answer:
PROFIT
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