Waec Mathematics Past Questions For Year 2006
Question 16
What must be added to x² - 3x to make it a perfect square?
- A. \(\frac{9}{4}\)
- B. \(\frac{9}{2}\)
- C. 6
- D. 9
Question 17
\(\begin{array}{c|c} x & 1 & 4 & p \\ \hline y & 0.5 & 1 & 2.5\end{array}\). The table below satisfies the relation y - k\(\sqrt{x}\), where k is a positive constant. Find the value of P,
- A. 2
- B. 4
- C. 10
- D. 25
Question 18
If loga270 - loga10 + loga \(\frac{1}{3}\) = 2, what is the value of a?
- A. 3
- B. 4
- C. 5
- D. 6
Question 19
Which of these equations best describes the points of intersection of the curve and the line?
- A. \(x^2 + 5x - 6 = 0\)
- B. x2 - 5x - 6 = 0
- C. x2 + x - 6 = 0
- D. x2 - x - 6 = 0
Question 20
If x + y = 12 and 3x - y = 20, find the value of 2x - y
- A. 8
- B. 10
- C. 12
- D. 15
