Discussion
Suppose demand for the oranges is given by the function \(q = 9 - \frac{1}{2}p\). Find the differential coefficient q'(p).
Answer: A
The differential coefficient is \(-\frac{1}{2}\).
Differentiate the demand function with respect to price:
\[ \begin{aligned} q &= 9 - \tfrac{1}{2}p \\ q'(p) &= -\tfrac{1}{2} \end{aligned} \]
The constant 9 drops out, and the slope is negative, as the law of demand requires: quantity falls as price rises. \(\frac{1}{2}\) loses the sign, and 9 is the intercept, not the slope.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development