Minimum value - Jamb Mathematics Past Questions and Answers

Question 6:

• JAMB 1999

If the minimum value of y = 1 + hx - 3x² is 13, find h.

A. 13
B. 12
C. 11
D. 10

Question 7:

• JAMB 2006

Find the value of x for which the function 3x³ - 9x is minimum

A. Zero
B. 2
C. 3
D. 5

Question 8:

• JAMB 2007

Find the value of x for which the function f(x) = 2x³ - x² - 4x + 4 has a maximum value

A. ²/₃
B. 1
C. - ²/₃
D. - 1

Question 9:

• JAMB 2009

The distance travelled by a particle from a fixed point is given as s = (t³ - t² - t + 5)cm. Find the minimum distance that the particle can cover from the fixed point.

A. 2.3 cm
B. 4.0 cm
C. 5.2 cm
D. 6.0 cm

Question 10:

• JAMB 2010

At what value of X does the function y = -3 - 2x + X² attain a minimum value?

A. -1
B. 14
C. 4
D. 1