Coordinate Geometry - Jamb Mathematics Past Questions and Answers

Question 61:

• JAMB 2000

3y = 4x - 1 and Ky = x + 3 are equations of two straight lines. If the two lines are perpendicular to each other, find K.

A. -4/3
B. -3/4
C. 3/4
D. 4/3

Question 62:

• JAMB 2001

A straight line makes an angle of 30° with the positive x-axis and cuts the y-axis at y = 5. Find the equation of the straight line.

A. Y = (x/10) + 5
B. Y = x + 5
C. √3y = - x + 5√3
D. √3y = x + 5√3

Question 63:

• JAMB 2001

Find the value of P if the line joining (P, 4) and (6, -2) is perpendicular to the line joining (2, P) and (-1, 3).

A. 4
B. 6
C. 3
D. O

Question 64:

• JAMB 2001

If the gradient of the curve y = 2kx² + x + 1 at x = 1 is 9, find k.

A. 4
B. 3
C. 2
D. 1

Question 65:

• JAMB 2002

The slope of the tangent to the curve y = 3x\(^2\) - 2x + 5 at the point (1, 6) is

A. 4
B. 1
C. 6
D. 5