Alerts
Wishlist
Cart
Sign In
Categories
Current Affairs & GK
Current Affairs
Show All Current Affairs & GK
eBooks
General Aptitude
Arithmetic Aptitude
Data Interpretation
Show All General Aptitude
General Knowledge
Basic General Knowledge
General Science
Show All General Knowledge
Medical Science
Anatomy
Biochemical Engineering
Biochemistry
Biotechnology
Microbiology
Show All Medical Science
Technical
Database
Digital Electronics
Electronics
Networking
Show All Technical
Verbal and Reasoning
Logical Reasoning
Verbal Ability
Verbal Reasoning
Show All Verbal and Reasoning
Find the focus of the parabola defined by the equation x^2 = 12y.
Practice Questions
Q1
Find the focus of the parabola defined by the equation x^2 = 12y.
(0, 3)
(0, -3)
(3, 0)
(-3, 0)
Questions & Step-by-Step Solutions
Find the focus of the parabola defined by the equation x^2 = 12y.
Steps
Concepts
Step 1: Start with the given equation of the parabola: x^2 = 12y.
Step 2: Recognize that this is a standard form of a parabola that opens upwards, which can be written as y = (1/4p)x^2.
Step 3: Compare the given equation x^2 = 12y with the standard form y = (1/4p)x^2. Here, 12y = (1/4p)x^2.
Step 4: To find p, rewrite the equation as y = (1/12)x^2. This means 1/4p = 1/12.
Step 5: Solve for p by cross-multiplying: 4p = 12, so p = 3.
Step 6: The focus of a parabola that opens upwards is located at (0, p). Since p = 3, the focus is at (0, 3).
Parabola Properties
– Understanding the standard form of a parabola and how to identify its focus.
Vertex Form Conversion
– Rewriting the equation of a parabola in vertex form to find the focus.
‹
Biology (School & UG)
Chemistry (School & UG)
Civil Engineering
Commerce & Accountancy
Computer Science & IT
Current Affairs & GK
Data Structures & Algorithms
eBooks
Electrical & Electronics Engineering
English (School)
General Aptitude
General Knowledge
General Knowledge & Current Affairs
Languages & Literature
Law & Legal Studies
Major Competitive Exams
Mathematics (School)
Mechanical Engineering
Medical Science
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Social Science (School)
Technical
Verbal and Reasoning
Vocational & Skill Development
›
Soulshift Feedback
×
On a scale of 0–10, how likely are you to recommend
The Soulshift Academy
?
0
1
2
3
4
5
6
7
8
9
10
Not likely
Very likely
✕
↑