Which of the following is represented by the above sketch?
MATHEMATICS
WAEC 2002
Which of the following is represented by the above sketch?
- A. y = x2 + x - 6
- B. y = x2 - x - 6
- C. y = x2 - x + 6
- D. y = x2 + x + 6
Correct Answer: B. y = x2 - x - 6
Explanation
From the graph, the zeros of the equation exist at x = -2 and x = 3
\(\therefore\) (x + 2) = 0 and (x - 3) = 0
\(\implies (x + 2)(x - 3) = 0\)
\(x^2 - 3x + 2x - 6 = 0\)
\(x^2 - x - 6 = 0\) is the equation represented on the graph.
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *