Equations of straight lines - Jamb Mathematics Past Questions and Answers

Question 11:

• JAMB 1984

A straight line y = mx meets the curve y = x2 - 12x + 40 in two distinct points. If one of them is (5, 5) find the other

A. (5, 6)
B. (8, 8)
C. (8, 5)
D. (7,7)
E. (7, 5)

Question 12:

• JAMB 1984

Find the x co-ordinates of the points of intersection of the two equations in the graph

A. 1, 1
B. 0, 4
C. 0,0
D. 4, 0
E. 4, 9

Question 13:

• JAMB 1986

At what points does the straight line y = 2x + 1 intersect the curve y = 2x² + 5x - 1?

A. (-2, -3) and(\(\frac{1}{2}\), 0)
B. (1, 0), (1, 3)
C. (4, 0) and (0,1)
D. 2, 0) and (0,1)

Question 14:

• JAMB 1992

find then equation line through (5, 7) parallel to the line 7x + 5y = 12

A. 5x + 7y = 120
B. 7x + 5y = 70
C. X + y = 7
D. 15x + 17y = 90

Question 15:

• JAMB 1994

The equation of the line in the graph is

A. 3y = 4x + 12
B. 3y = 3x + 12
C. 3y = -4x + 12
D. 3y = -4x + 9