Equations of straight lines - Jamb Mathematics Past Questions and Answers

Question 1:

• JAMB 1979

The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is

A. 1.5
B. 0.8
C. 1.0
D. 1.02
E. 1.05

Question 2:

• JAMB 2019

Find the equation of the locus of a point A(x, y) which is equidistant from B(0, 2) and C(2, 1)

A. 4x + 2y = 3
B. 4x - 3y = 1
C. 4x - 2y = 1
D. 4x + 2y = -1

Question 3:

• JAMB 2019

Find the equation of a line perpendicular to the line 4y = 7x + 3 which passes through (-3, 1)

A. 7y + 4x + 5 = 0
B. 7y - 4x - 5 = 0
C. 3y - 5x + 2 = 0
D. 3y + 5x - 2 = 0

Question 4:

• JAMB 2018

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

A. 5x + 7y = 20
B. 7x + 5y = 70
C. Xy = 7
D. 15x + 17y = 90

Question 5:

• JAMB 2017

Find the equation of the locus of a point p (x, y) such that pv = pw, where v= (1, 1) and w = (3, 5)

A. 2x + 2y = 9
B. 2x + 3y = 8
C. 2x + y = 9
D. X + 2y = 8