Jamb 2009 Mathematics Questions
Question 11:
A polynomial in x whose roots are 4/3 and -3/5 is
- A 15x<sup style='font-size: smaller;'>2</sup> - 11x — 12
- B 15x<sup style='font-size: smaller;'>2</sup> + 11x — 12
- C 12x<sup style='font-size: smaller;'>2</sup> - x — 12
- D 12x<sup style='font-size: smaller;'>2</sup> + 11x — 15
Question 12:
Which of the following equations represent the graph above?
- A Y = 2+7x+4x<sup style='font-size: smaller;'>2</sup>
- B Y = 2-7x+4x<sup style='font-size: smaller;'>2</sup>
- C Y = 2+7x-4x<sup style='font-size: smaller;'>2</sup>
- D Y = 2-7x-4x<sup style='font-size: smaller;'>2</sup>
Question 13:
W is directly proportional to U. If W = 5 when U = 3, find when W = 2/7
- A <sup style='font-size: smaller;'>6</sup>/<sub style='font-size: smaller;'>35</sub>
- B <sup style='font-size: smaller;'>10</sup>/<sub style='font-size: smaller;'>21</sub>
- C <sup style='font-size: smaller;'>21</sup>/<sub style='font-size: smaller;'>10</sub>
- D <sup style='font-size: smaller;'>35</sup>/<sub style='font-size: smaller;'>6</sub>
Question 14:
Determine the value of x for which (x\(^2\) - 1) > 0
- A X < -1 or x > 1
- B -1 < x < 1
- C X > 0
- D X < -1
Question 15:
Find the range of values of x for which 3x - 7 \(\leq\) 0 and x + 5 > 0
- A -5 < x < \(\frac{7}{3}\)
- B -5 \(\leq\) x \(\leq\) \(\frac{7}{3}\)
- C -5 < x \(\leq\) \(\frac{7}{3}\)
- D -5 \(\leq\) x < \(\frac{7}{3}\)