Inequalities - Jamb Mathematics Past Questions and Answers

Question 51:

• JAMB 2005

The diagram above is the graph of the function f(x). Determine the range of values of x for which f(x) \(\geq\) 0.

A. X \(\geq\) 2
B. 0 \(\geq\) x \(\geq\) 2
C. -2 \(\geq\) x \(\geq\) 0, x \(\leq\) 2
D. X \(\geq\) -2, 0 \(\geq\) x \(\geq\) 2

Question 52:

• JAMB 2006

Solve the inequalities for which \(\frac{x+4}{3}-\frac{x-3}{2} < 4\)

A. X < 7
B. X > -7
C. X < -7
D. X > 7

Question 53:

• JAMB 2006

If y = x\(^2\) - x - 12, find the range of values of x for which y \( \geq \) 0

A. X < -3 0r x > 4
B. X \( \leq \) -3 or x \( \geq \) 4
C. -3 < x \( \geq \) 4
D. -3 \( \leq \) x \( \leq \) 4

Question 54:

• JAMB 2007

The solution of the quadratic inequality (x³ + x - 12) ≥ 0 is

A. X ≥ -3 or x ≤ 4
B. X ≥ 3 or x ≥ -4
C. X ≤ 3 or x v -4
D. X ≥ 3 or x ≤ -4

Question 55:

• JAMB 2007

Solve the inequalities -3(x - 2) < -2(x + 3)

A. X > 12
B. X < 12
C. X > -12
D. X < - 12