Mathematics 1995 Waec Past Questions and Answers

Question 16 :

• WAEC 1995

Solve the equation 3x\(^2\) + 25x -18 = 0

A. -3,2
B. -2,3
C. -2,9
D. -9,2/3
E. 2/3, 9.

Question 17 :

• WAEC 1995

Solve the equation (x +2)(x - 7) = 0

A. X = 1 or 8
B. X = -2 or 7
C. X = -4 or 5
D. X = -3 or 6
E. X= -5 or -2

Question 18 :

• WAEC 1995

Solve the following simultaneous equations: x+ y = 3/2; x - y = 5/2 and use your result to find the value of 2y + x

A. -2
B. -1
C. ¹/₂
D. 1
E. 3¹/₂

Question 19 :

• WAEC 1995

Use the graph of y = 3x\(^2\) + x - 7 above to answer the question
What is the minimum value of y?

A. -10
B. -7
C. -4
D. -1
E. 2

Question 20 :

• WAEC 1995

Use the graph of y = 3x\(^2\) + x - 7 above to answer the question
Find the roots of the equation y=3x\(^2\) + x - 7

A. 1.0 And -1.2
B. 1.1and-1.3
C. 1.4and-1.7
D. 2.0 and -1.9
E. 2.4 and -2.0