If a graph cuts the x-axis at the points (2,0) and (14,0), what is the average of the zeroes?
Answer and explanation
Correct answer: 8
The zeroes are the x-coordinates where the graph meets the x-axis, so take the average of those x-values. Average = \(\dfrac{2+14}{2}=8\). Option A (6) is incorrect because 6 would be the average of 2 and 10, not of 2 and 14. Exam tip: for x-intercepts, average their x-coordinates: add them and divide by 2.
Frequently asked questions
What is the correct answer to this question?
8
Why is this the correct answer?
The zeroes are the x-coordinates where the graph meets the x-axis, so take the average of those x-values. Average = \(\dfrac{2+14}{2}=8\). Option A (6) is incorrect because 6 would be the average of 2 and 10, not of 2 and 14. Exam tip: for x-intercepts, average their x-coordinates: add them and divide by 2.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Geometrical meaning of the zeroes of a polynomial..
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
