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M2-009-A03-V02
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A-SSE.1.b
Warmup
M2-009-A03-V02
Interpret quadratic/exponential expressions by treating sub-expressions as meaningful units.
Estimate nonlinear intersections from a graph
Problem
Use the displayed diagrams to analyze \(R=p(50-p)\) for \(0\le~p\le~50\). Interpret price and demand factors with units, derive revenue units, find both zeros, and explain their zero-revenue meanings.
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A
Factor p is price in dollars per item and 50 − p is quantity demanded in items; their product is revenue in dollars. For 0 ≤ p ≤ 50, zeros p = 0 and p = 50 give zero modeled revenue.
B
Factor p is price and 50 − p is demand; their product is revenue. The zero p = 50 is selected as the maximum-revenue price because it makes the demand factor zero.
C
Factor p is price and 50 − p is demand; their product is revenue. The zero p = 0 is rejected as algebraically invalid even though it is within the stated price domain.
D
Factor p has dollars per item and 50 − p has items; their operation adds the units, so R has dollars per item plus items. Zeros p = 0 and 50 are both price units.
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Curriculum context
Standard A-SSE.1.b
Category Algebra
Domain Seeing Structure in Expressions
Objective Interpret quadratic/exponential expressions by treating sub-expressions as meaningful units.
Problem type Estimate nonlinear intersections from a graph