Jamb Mathematics Questions - Equations of straight lines
Question 16:
Three straight lines EF, GH and LK interest at O as shown above. If ∠ KOF = 52o and ∠ LOH = 85o, calculate the size of ∠ EOG.
- A 26<sup style='font-size: smaller;'>o</sup>
- B 43<sup style='font-size: smaller;'>o</sup>
- C 52<sup style='font-size: smaller;'>o</sup>
- D 85<sup style='font-size: smaller;'>o</sup>
Question 17:
The gradient of a curve is 2x + 7 and the curve passes through point (2, 0). find the equation of the curve.
- A Y = x<sup style='font-size: smaller;'>2</sup> + 7x + 9
- B Y = x<sup style='font-size: smaller;'>2</sup> + 7x - 18
- C Y = x<sup style='font-size: smaller;'>2</sup> + 7x + 18
- D Y = x<sup style='font-size: smaller;'>2</sup> + 14x + 11
Question 18:
Find the gradient of a line which is perpendicular to the line with the equation 3x + 2y + 1 = 0
- A <sup style='font-size: smaller;'>3</sup>/<sub style='font-size: smaller;'>2</sub>
- B <sup style='font-size: smaller;'>2</sup>/<sub style='font-size: smaller;'>3</sub>
- C -<sup style='font-size: smaller;'>2</sup>/<sub style='font-size: smaller;'>3</sub>
- D -<sup style='font-size: smaller;'>3</sup>/<sub style='font-size: smaller;'>2</sub>
Question 19:
The gradient of the straight line joining the points P(5, -7) and Q(-2, -3) is
- A \(\frac{1}{2}\)
- B \(\frac{2}{5}\)
- C \(-\frac{4}{7}\)
- D \(-\frac{2}{3}\)
Question 20:
Find the equation of the line through the points (-2, 1) and (-\(\frac{1}{2}\), 4)
- A Y = 2x - 3
- B Y = 2x + 5
- C Y = 3x - 2
- D Y = 2x + 1