When the cross-price elasticity of demand between dental check-ups and over-the-counter teeth-whitening strips is a small positive number, the two goods are best classified as
income and cross-price elasticity
Review income and cross-price elasticity for AP Microeconomics and try 2 free AP-style practice questions. 17 questions on this topic in AP Micro · Unit 2 · Supply and Demand.
Try free questions
If a rise in Trentland's average household income causes bus-ticket purchases to fall while new-smartphone purchases rise, the two goods are best classified, respectively, as
15 more questions on this topic
Full practice for AP Micro · Unit 2 · Supply and Demand: timed tests, step-by-step explanations for every answer, and AI grading for free-response questions.
Start practicing freeInside the course
How practice works on S&D Academy
Answer, then see why
The price of gasoline rises 10% and the quantity demanded falls 5%. What happens to total revenue?
Not quite. The answer is B.
Why the other options are wrong
AI grading for free-response
Write your FRQ answer and get it scored point by point against the AP rubric, with the line from your answer that earned or missed each point.
Question 13 / 4 pts
Part a1 / 1 pts
Point 1: Earned
Grader confidence 94% sureReason: Correctly identifies demand for gasoline as inelastic.
Evidence: "The price of gasoline rises and the quantity falls only a little."
Part b2 / 3 pts
Point 1: Earned
Grader confidence 91% sureReason: Graph shows relatively inelastic demand.
Evidence: Draws a steep demand curve.
Point 2: Earned
Grader confidence 88% sureReason: Correct new equilibrium price.
Evidence: Shifts supply left, P1 → P2.
Point 3: Not earned
Grader confidence 82% sureReason: With inelastic demand, a price increase raises total revenue.
Evidence: "Revenue goes down."